Here’s what happened to me:
My car got towed because I didn’t know if a particular day had the parking hours enforced or not (the sign had the holidays exception.)
I called the police, they told me to call 911 and ask for the dispatcher. I called 911 and apologized for using the line, but they told me it’s fine. The dispatcher (the person in charge of parking violations) can only be contacted through 911.
The second time, I had questions about moped law. I couldn’t find the police station’s number, and 911 connected me directly after I asked if they had the police’s number. The sergeant on the other end was extremely helpful, and stayed on the line with me for about a half an hour.
Another time, I had a question about the fire department. 911 connected me again, and the firemen told me that they don’t have a direct call number, and that they can only be called through 911.
So, calling 911 for information is perfectly fine in my state.