No such ambiguity on the highway the other day. I was stuck behind a left lane hog as he went to pass the semi in the right lane at a speed differential of .0000001 MPH. A guy in a pickup comes up behind me and starts flashing his highbeams at me. Last I checked my car wasn’t invisible (thus only I could see the flashes). Yeah, even if I get out of your way Jack, you’ll still have to deal with the bozo that was in front of me.
Of course, as soon as I was clear of the semi (the hog natcherally couldn’t be arsed to move right) I zipped around the hog and left them all in my dust.