Tesla's New Model S 60kWh Has a 75kWh Battery That's Software Limited

Tesla is shipping 75kWh batteries as 60kWh batteries, and requiring customers to pay an extra $8,500 to flip a configuration bit to unlock that last 15kwh.

I don't mind DRM for digital goods in which the variable cost is essentially $0, but this sort of DRM on physical goods leaves a yucky taste in my mouth. I'm curious how illegal it would be for someone to perform (and sell) a jailbreak/unlock for that last 15kWh of capacity.