They've had a few other checkpoints like this - usually staffed by both Marin County or town law enforcement and MCBC folks. This is the first that I am aware of that has occured immediately after/because of a car-bike accident.

Not only is Marin County hip - we also have GREAT roads (and trails) for riding.

And for those who are interested, Hole in Pants cycling is guaranteed to catch on eventually as a summer fashion statement. It's like air condiitoning.