I once got pulled over for going through a red light,
It was 7:00am on a Sunday in June, It was a road with 3 lanes each way and I stopped. After a minute of no cars and none in sight I went past the light. I was about 3 block from the intersection when I head a police car so I pulled over to let him go by.. and he pulled over. He decided to lecture me about how he could write a ticket and it would go in my driver's license. And if I didn't have valid picture ID he could arrest me and take my bike. I decided to let him talk since he wasn't giving me a ticket.
As it turns out, I have a friend who's a captain at the same precinct and mentions the story. He said he knows who it was and he's a jerk. And if he did write a ticket the judge would throw it out.
Yes, many cyclists are jerks.
I do go through red lights and stop signs IF I feel it is safe. After all, if in wrong, i'm the one that pays for it.
I generally wave to motorists that give the right of way and are courteous.