Let others fly my vehicle over my land

So I made a peculiar nonphy vehicle, and now everyone who sees it wants to try it. I'd like to leave it rezzed on my land and let people fly it, just on that parcel, when I'm not there.

Any pointers on how to do this...is it plausible to detect the parcel border and bounce the vehicle back? Or should I just have it derez and reappear at home base as soon as llOverMyLand returns false? That seems more foolproof, though not as convenient for users.

Thanks!