ASL vehicle offender

i have a new tactic for this, i dont bother trackstanding, i just use their car as a rest for my hand, i usually do it behind the driver to be a little safer, but in my mind its a small victory.

Normally I just pull in front and do the whole "look back and shake head" thing however that is a genius bit of passive-aggressiveness. I shall incorporate this into my commute from this day on.