Skis would probably work, the best way would probably be belt jacks, that are activated by not pressing a button on your car when it starts, like that button on the steering column shroud, rewire it to deactivate the jacks lowering and are powered by the driveshaft and then reach a certain point and then stop, and puzzlenuts people, they save your mags, make each nut a puzzlenut on each mag, and keep the puzzlers in a secret compartment that's. Behind the stereo or whatever, if y
ou're putting jacks in, a secret compartment for the puzzlers wouldn't hurt.
And ikf the buttons not pressed, it activates the jacks, they get to a point and then disengage, so you need to manually re-activate it.