If there isn’t a universal warning honk for the presence of ICE and DHS, there should be. If it was heard it from a long way off, plans could be made.
We need a guy in a tower banging on an anvil with big hammers.
Do you mean the honking of car horns? Because it would be highly likely to be mistaken for non-ICE-related sounds. People would think it means someone is expressing displeasure about someone’s driving, or something else car-related. It would be hard to get them to think it’s about ICE.
It just needs a recognizable pattern that everybody could pick up on.
I believe ICE is arresting people for that. So be aware.
It’s been ruled that notifying others of the presence of law enforcement (say, flashing your lights to warn of a speed trap) is protected speech.
I know, I know. But it used to matter.
They will arrest you for “impeding”.
It has been determined that warning people about a police presence is protected by the First Amendment. However, ICE does what it wants regardless of the law, so they are wrongfully arresting people anyway.
The civil rights case involved a Connecticut man who was arrested in 2018 for holding up a sign that warned motorists about a nearby police checkpoint. The misdemeanor interference charge against the man was later dropped. The U.S. Court of Appeals for the Second Circuit ruled that the man’s arrest and the confiscation of his sign and cellphone violated rights protected by the First and Fourth Amendments.
They don’t care. They feel empowered to do what they want. That’s why there is such resistance to them. They are not legitimately enforcing the law or protecting the public.
There needs to be more resistance, not less. More exposure. More noise. People need to know what BS is happening. Some will cheer it on (because racists and assholes are a part of life), but most people will not be okay with it as long as they actually know it’s happening.
I think the Mexican community could get behind “Shave and a Haircut.” 
The Spanish “lyrics” translate to “screw your mother, asshole.”
If everybody in the vicinity just leaned on their horns it would sound crazy.
Visiting Florida last month, driving along the interstate and I saw upcoming on my google maps, a snowflake icon to indicate “icey conditions” or whatnot. I thought, hm, weird, someone must’ve hit the wrong icon or something. Got closer, and it was a Border Patrol van that had pulled over a truck of (presumably) migrant workers.
So, that was a clever one.
Sigh…
I was going to suggest Morse code for “I-C-E”, but I like yours better. They can’t arrest everyone.
Yeah, Morse Code would be far too complex. 2 dots, dash dot dash dot, then dot. No…..
Maybe “OSO”? Just “SOS” in reverse? It’s Spanish for “bear”, which is sometimes a slang term for state patrol officers, expand it to ICE.
If everybody just leaned on their horns, it would be a different sound than random city honks. Hearing it a couple blocks away, you’d know something was up. And in close confines, the horn cacophony might actually be a little disorienting.
Laws vary by jurisdiction. Court cases may not cover circumstances nationwide.
Or La Cucaracha, which was an option on those aftermarket horns that played Dixie (damn them Duke boys!) and other easily recognizable short song bits.
That article goes on about interpretation and differing state laws, but the only specific case it cited was one in TX where the court ruled it was protected speech. I’ve heard of numerous cases where the courts ruled in favor of the motorist, but I’ve never heard of one in favor of the state (at least, after appeals).
I’ve heard of states saying the charge has nothing to do with warning, but a misuse of equipment. But the problem with that is it is near universal (and uncontroversial) to flash lights to let someone go.
I would be very surprised if SCOTUS (well, maybe not this SCOTUS) wouldn’t find it protected speech. That is, obviously, my opinion.
ETA: A quick google search for “Have any courts ruled it illegal to flash headlights to warn” resulted in no examples of courts ruling for the state, but plenty for the motorist. Not exhaustive research, but I’ll stand by my statement but remain open to being educated
Obviously two short beeps followed by two longer beeps.
True! In this case the jurisdiction is the United States.
And your link didn’t contradict that.
If a driver flashes their headlights with the intent of cautioning fellow motorists about law enforcement presence ahead, it could be perceived as a form of protected free speech under the First Amendment of the U.S. Constitution.
What it warns about is violating other laws in the process of warning people. Flashing lights might be a violation of law in itself, as might be other methods of warning people of police activity. Blaring a bullhorn at 4 AM might be disturbing the peace. Spray painting a warning on a wall might be vandalism. Crossing onto private property to warn people might be trespassing. It doesn’t give you a free pass to break the law, it’s just that the act of warning people itself is protected.