Rude to Pedestrians

I like to walk. Today as a I was crossing at a busy intersection with the crossing signal, a car coming parallel from the other direction honked and the guy on the passenger side yelled something about "jaywalker". The same thing happened to me and Larry about a month ago. Since I was actually crossing the absolute most legal way possible, the rude people must be either very stupid or have some warped emotional need to give others a hard time. The question that remains for me, is if these same guys are as rude to strangers when they are not in a moving vehicle? I think it is always easier to be rude (and "brave") when you are in a car and the person you are antagonizing is on foot.