To answer your questions, yes, there are laws that govern the rules and rights for cyclists for each state. Just like motor vehicles. I consider myself a piece of the traffic "equation". Thus, I do not squeeze myself between the line of cars and whatever is on the right to get to the front of the line of traffic. I put myself in the last in line. Now, I do not appreciate the vehicle behind me riding up my bung hole just because he feels like I should be off in the pea patch somewhere and not slowing him down.