I find that mostly I am treated as I treat others. There are of course times I am irritated by rudeness whether intentional or just not realized but I have no problem finding plenty of asshats in Los Angeles or any large city in the USA or for that matter, Europe or Australia. I think it is a statistical thing related to the fact that if you have 1000 people anywhere in the world 10 of them are not worth the effort of walking across the street and pissing down their throat if their stomachs were on fire. When in a population of say 100,000, it is not too difficult to avoid those 100 people but when in a population of 25 million........

Anyway, I am still finding a smile and laugh will usually get the same returned.