it did happen to me once on my '05.
About a year ago. I was loading some gear in the back, and for whatever reason, while approaching I thought something looked odd.
Sure enough, I look underneath and the spare tire was gone. They unwound the system just enough, and used bolt cutter or some type of heavy duty cutter and clipped the braided cable
Had to get a new system and wheel/tire.
Now it's locked, to at least slow the criminals down.