Stolen Laptop Calls In! - Will Police Act?
The end of your post is exactly what I was thinking. LoJack is an established security company, so its evidence tends to stand up in courts and holds weight with police officers (in the "LoJack says it's stolen? That's good enough for me." sense). The evidence of a private company's little phone-home script probably isn't enough to get a warrant, and even if it was enough to get said warrant initially, it would be called into question in the trial and would likely be thrown out.