[mindslight]

By not "speeding", you're violating the de facto rules of the road in most places.

In order for your stance to make sense in the universal moral sense, people must respect the law. In order for people to respect the law, the law must conform to normative behavior. Bureaucrats who invert this causality and work to dictate people's common behavior (whether it's 10mph too-low speed limits, drug persecution, or even something a-posteri-innocuous like the MA seatbelt law) are ultimately responsible for destroying this respect and creating a society where everybody is guilty but only selectively prosecuted.