In terms of the speed issue I think that someone driving say 40mph on I25 while in the fast lane (with clear traffic) is causing a safety issue. Not saying cyclists are assholes or have super egos, I'm not in that part of the discussion at all. I've heard of people getting pulled over though for going to slow without a minimum speed limit. It really can be a flat out safety issue. I don't think common sense in terms of using a less busy road, obeying lights and trying not to be obstructive is out of line.