I've had several discussions with friends who have had similar experiences. It's kinda creepy in the way that everything is so divisive and you can't even speak your mind. It reminds me of McCarthyism. Like the Patriot Act, that is creepy. It has always confused me how folks talk about freedom and then allow the government to limit it!
The election results will be very interesting. I have a wierd sense of foreboding. As the Three Stooges would say, "It's like the sword of Damocles hanging over my head!" And you know what happened whenever those words were spoken!
I think maybe the guy felt like you were running him down. I hope you are planning on litigating, cause you'll be good at it!