Just like in your car you can break the law and speed. Which happens every day down every road. Golf carts are not suppose to exceed 20 mph. There don't have to be speed limits posted if the cart can't exceed 20 mph. Now If you tamper with the governed speed of golf car You or them are breaking the law and will be punished when caught just like getting caught speeding.
Now for the LSV using golf cart paths? IMO they Shouldn't be allowed do the the fact they Are street legal vehicles capable of exceed the 20 mph limited speed of golf cart. But, that's my opinion which don't mean anything
People find ways to skirt or cheat about every law. So what the point of this? If you are law breaker or cheater willl posted sign going to stop them?