14 California
You might be surprised to find California here, but while the state has some of the friendliest and most laid-back cities, they also have some of the rudest people in America. California is home to one of the largest populations in the world, so you're likely to run into a mean person or two.
Navigating the California highways takes practice and prayer; when you're not experienced with them, other drivers can be less than pleasant. You'll also find that many Californians are focused on building their careers and simply don't have time for useless small talk.
