Doors off. Well, legally... YJ up until a certain production number is legal with safety chain or strap. TJ, not legal. As for on post, 190-1 doesn't say anything about it. JK is not covered yet, so unless it's in your fahrzeugbrief, you can't legally drive with doors off.
Enforced? Probably not without some incident. If you have mirrors and your kids aren't hanging out, they'll mostly leave you alone. I'm sure it's someones pet-peave and they'll get you when they see you... Keep your feet inside, drive normal, have mirrors, and they'll mostly leave you alone. On post, you may get a ticket for parking unsecured vehicle.
2013 Wrangler Rubicon 2dr