I think the source of the impression that cyclists are particularly bad with traffic laws is that there are not well-developed expectations about which laws a cyclist will ignore--not in the same way those expectations exist for cars. I'm in Illinois right now, and can tell you that speed limits are treated as minimums, turn signals are used more than in some places but are still optional, pedestrian right-of-way laws are ignored to the point that is causes problems when a vehicle obeys them, and so on.
For all that, things are pretty predictable, and it's not a bad area to drive. From what I can tell, cyclists are a little less likely to be breaking a law at any given moment because, unlike motor vehicles, they aren't consistently speeding. But they're harder to deal with because they're too uncommon to seem predictable.