That is why a Cart Rental form is required.
As a former course Ranger I have seen similar situations. Amazing how many involved Alcohol.
I had to take the keys out of several carts, and send their renters off the course on foot several times after stopping them from playing bumper cars.
Did I get negatives. You bet your A**.
But I also explained that they signed an agreement and let them know their options. Walk off ... or the Sheriff will be the dealer of the situation.