When I ride with my ladies group and by myself, I try to obey the road laws as much as possible, even though, I will admit, I have made some mistakes. But, when I ride with the Saturday group, they have no regard for the rules, both law and unwritten such as being polite. They run red lights, take entire lanes (which is ok when there is no traffic but during high traffic hours, no way), no signals, etc and it really has put me in a bind. I want to get faster and the Sat. ride is a great training ride for speed, but without any regards for the road rules, it makes the ride very unsafe promotes bad cycling behavior.
When watching the video, I was appalled at Critical Mass when they confronted the driver. Yes, he ran over a bicycle and they should be angry, but don't go nuts and form a mob! Call the cops, get a license plate # and a description and make sure that no one is injured. What if that guy had a gun or got out and started being violent?
Also, I was a little t'd off as to how they were riding, taking up entire lanes (not just one but multiple lanes), slowing the flow of traffic and what would be considered in FL as committing traffic violations.
As what others have said earlier, we all need to be considerate and behave in a appropriate manner that promotes cycling as a positive acitivity.