He asked if there were laws... not if they were enforced.

There are many, many laws that are not enforced.

For arguments sake:
I could usually follow someone less than 1/2 mile and find multiple violations or PC for a stop.
Then some citizens like being jerks and get more tickets than the average guy. That is when things light altered suspension, altered exhaust, etc. ..... and the tickets start flowing.

Most of these tickets are dismissed for guilt on a bigger charge in court.

Word to the wise," Be respectful, keep your mouth shut." This is the way to avoid additional tickets. If you want to fight the ticket, don't try and fight the po-po about the ticket, take it to court. Also don't tell the po-po you'll see him in court. Officers take notes on the back of the ticket which include many things that will get your fine increased and found guilty in court.... don't give them more fuel.

BTW, I am not LEO anymore and haven't been for about 15 years.