Twitter has recently announced that Buffalo, NY is America's rudest city. I live on the outskirts of the rude pulsar shown in the graphic below. I can say, this area is one of the rudest areas I have ever lived, which includes NYC and Boston. Largely, folks are the rudest when they are behind the wheel, road rage is frequently on exhibit..
How much weight do you give these "Twitter Maps?" I am thinking that they may be quite accurate.