The market is already there. I have a 2010 Mercedes C180 and the car suddenly wouldn't start. Turns out it has an coded electronic steering lock which talks to the electronic ignition and won't enable the car if the lock doesn't disengage. Of course the steering lock itself failed - turns out this is a design flaw. Would have cost way too much money to transport the car to the Mercedes dealer at the only time the dealer would accept it for repair and then have them replace it. Turns out there's a thriving market in folks who will come to your house, completely remove the steering lock, and replace it with an emulator that just pretends to unlock when its told to.