target2019
Give me a museum and I'll fill it. (Picasso) Give me a forum ...
If my neighbor slows down and waves, and I don't notice, does that send a signal back to them that they should beep?Not legally, but I doubt you'd ever be prosecuted. But I hate that myself, because it startles me. I had a neighbor who used to honk every time he drove by and see me running, even if I was on the edge of a road with a steep drop off. I'd be running against traffic so I could see cars coming, but if I hear a horn behind me my reaction to the horn is that there is a danger and my instinct is to step off the road, which would be in a ditch or down an embankment. Finally I told him to stop, and he did. If you really want to greet your neighbor, slow down as you pass and wave.
That followup is tongue in cheek. We live in a neighborhood that is very quiet, and people seem to be very private and guarded. A new neighbor seems intent on beeping every time she drives by, when I am on a walk. I am not really focused on neighbors driving their cars when I am out on a walk with doggie. There seem to be a lot of technically-illegal behaviors that are no longer discussed or enforced.
I think if I ever get pulled over for a short toot at the moron who is texting in the car in front of me, I would be very irate. But technically I was in the wrong.