I had LoJack on a car I had that was stored in Arizona, while I was still living in california. Didn't help, cause it was stolen out of my garage and I didn't know it for a few weeks. The LoJack was registered to a close family friend that I bought the car from, neither of us knew it had been stolen. The car was absolutely ruined to make it look different than it did when it was mine.
Oh, almost forgot. It was used in home invasion robberies, and (I think) stolen by someone in my neighborhood, because it was abandoned, out of gas, on someone's sidewalk, within hours of our showing up in az and realizing it was stolen (along with the house being broken in)
Police have done nothing, hardly a surprise.