Go ahead and lock your spare, I'll just take your four mains instead. Locking it does hardly anything.
If Row had the Hitchgate HD+ whatever with the cooler platform, I'd steal the whole darn thing.
I've only had people try stealing my spare at boat ramps. The new splined lug nuts seem to deter theft, but it's only a matter of time before those sockets get more popular. Since no aftermarket wheels take OEM lugs anymore, and there's tons of shady people that use their kids lunch money to buy wheels, so they're all going to have splined lugs eventually. Wheel lock nuts, and locking hitch pins are a no go in the salt belt. Even these splined lugs are a pita. The socket snaps in half if you don't religiously anti seize them. If your dog doesn't sparkle, you didn't use enough anti seize.
I still have a tailgate, so obviously I've been avoiding shady people well enough.