I live 30 miles north of LA. Closer I get to LA, people tend to get a little bit nastier and angrier. I had a chick flipping a bird at me when I flicked my bi-Xenon when she made a illegal left-turn in front of me from the othe side of 4-way street. A week ago in a not-so-busy two-way road I had a Latino man blocking the road chatting with a friend who parked on the right. I waited at least 30 secs for him to finish his chatting, and finanly went around him over the yellow lane. He started cursing and honking at me for passing him by. I would have given him a hand jesture but I know this type of people have nothing to lose and often 'packed.'
In my town, we get some absent minded drivers but rarely with the "Metropolitan Attitude."