I got caught with one of those red-light cameras in Phoenix, AZ. I was from outta state and when the light turned yellow, ALL of the other lanes people were slamming on their brakes. Evidently, they all knew about this intersection. The traffic light immediately turned red (a lot quicker than normal) and flash bulbs went off. About a week later, I received a pic of my smiling face and all of the details of me running that red light.
They offered defensive driving course locally to clear the ticket but they said they never received my paperwork. So, they declared me guilty, suspended my license (notified my state which suspended my license here since they must honor other states requests). I ended up paying the fine, plus court costs (over $400) and had to go to local court to get my license reinstated.
Like GE stated above, don't dare tailgate me NOW when the light is changing, as I will slam on those brakes.