Of course they do.
Can you cite the exact penalites for various degrees of speeding in your state?
Some states you can get arrested for going 20+ over the limit, while in some states it's a heavy fine, and in others a smaller fine.
So not only are laws different in each state, so are the penalties which makes it even more confusing.
My point is simply that there are so many laws, it's impossible for anyone to know them all or comply with them all.
Try again. One can know something is illegal without knowing the penalties for breaking it.