Fastway one step chocks secure the tandem tires and have a place to put a pad lock through them so they can't be removed without cutting the lock. That and a hitch lock would require two things to be cut which is a bigger deterrent than most make their campers to be. Putting a chain around the other set of tires or somewhere else on the camper would be cut 3. AT that point, you've got a very determined thief with obviously a low traffic area with no one around the area that is making them the least bit scared they will be caught.
I use the hitch lock in my driveway, even if I'm gone for a week but it's a relatively safe neighborhood with plenty of activity (school close, older neighbors that are home all day working in their yards and visible, etc. That and being fully insured and I just don't worry about it at that point.
