Clearly, we should move past debating and make it actually happen. Think about it: stealing his battery is the perfect solution. He can buy a new battery from Tesla without selling the old one back. We'll launder the stolen goods a bit, then sell the battery back to him for cheap. We make a tidy profit, he gets his spare battery, and Tesla makes a nice profit selling the new battery. It's win-win-win.
wk057: obviously, forget you saw anything here, since you don't want to know too much. Just start making a habit of leaving your car out in the open where it's easy to get to. And, obviously, leave the alarm off.