That's definitely one way of providing an anti-theft device.....and stopping future thefts....More than 30 years ago, different country, a friend had a number of BMW cars stolen, one after the next. Then got hijacked with one. That was the final straw.
Took a bottle of Scotch, laced it with arsenic, locked it in the glove box. Car got stolen, they found it a day later with four dead bodies.