When I used to live in West Asia (the dangerous parts), where cars were usually taken at gunpoint, we had a GPS tracker fitted (bear in mind this was in 2000) in our $100k Honda Accord 2.0 150 PS VTec (yes 100k! due to 300% import tax on 2.0liter+ cars, and dad's company will only order 2.0 engines for his role, could have speced the Accord 1.8 140PS VTec to the max, and it would still be only 1/4 the price, $75k for 200 cc
)
Anyway, if the car was disappearing out of certain city limits, they would give the owner a call for a request for the password so they don't immobilize the engine. Once my dad forgot to notify them he was going out past the edge of city limits to a scenic golf course for a company golf tournament, and mobile signal was patchy, and yes the engine did randomly die...oops...at least we knew it was working. Once they managed to call through engine could be restarted.
Not sure if they have this system here or not though. Or maybe due to legality etc.