Ha - imagine a bank robbery escaping in a driverless car, only to have the manufacturer brick it during their daring escape.
You use whatever app to summon a car. You give it a destination, and instead, the car makes a detour to the local police station. the address you entered is in a higher crime rate locality, and therefore the car owner approved further "screening". So the car goes to the local police station for a routine search of the car (authorized by car owner) and a dog search of you...
That kind of future is one I am worried about.
My search-fu fails to find you a link.
and i am also pretty sure even a bad lawyer could get you a criminal kidnap case out of this.
From a ridiculous bullshit standpoint, arrest by autocar isn't so far off from stop and frisk.