You can pick apart the NV regs all you want.
You are dealing with a private police force in each individual casino.
If they want to selectivly enforce the regs, they can and will. The gaming commision will back them. If you get caught and they ask for their roulette chips back, and you refuse, expect to be trespass warned. If you argue too much, expect to be handcuffed, put in a dentition cell, and wait for Metro to pick you up.
END OF STORY!