I drove an 18 wheeler for 22 years. The laws are so complex that if a DOT officer does an inspection on your truck, they can write you a ticket for something if they really want to.
Lot of the laws are well known but it's the gray areas that most folks are not familiar with.
It would be better to just enforce the laws that make a real difference and don't violate individuals rights.
But, in today's world, to hell with the constitution and just do whatever we can get away with.