The quickest way to steal an Airstream is to wrap your safety chains around the crook's receiver/ball assembly, raise or break the jack and drive away taking the various coupler locks, ProPrides and Hensleys with them.
You could slow them down for 30 seconds with a chain through the wheels and over the axle, but portable cutoff saws are fast.
Insurance and good parking is your best bet, supplemented with an electronic warning/locator device.
Doug and Cheryl
2012 FC RB, Michelin 16, ProPride 1400
2016 Ram 1500 Laramie Crew Cab 4X4 Ecodiesel 3.92 axles
The Truth is More Important Than the Facts