Not to start up situational awareness recycling but he must have seen me go in and then saw where he could block my car in. I do not remember that truck when I went in, but it could have been fairly close. When I say it happened fast, I mean that when I got my key in the door to unlock it, his truck was not there but in the second that I opened the door and was about
to climb in, I looked ahead and there he was blocking me in at that point.
That is what separates this in my opinion from mere panhandling to aggressive and therefore worthy of special alertness. Can we even say we are in Condition Yellow if something so out of the ordinary occurs and we do not immediately say "Hey, pay attention, something might become a threat here."
A stranger suddenly blocking in your vehicle and yelling at you, for whatever reason (well except, Hey your lights are out, or your tire is flat), is a "heads up" moment in my book. Especially when they don't just move on but linger after you have expressed no interest.