Talk of a driver needed to be towed because of running a car out of charge. In order to tow the Roadster the VDS screen can help the driver release the paw that locks the transmission to allow the car to run safely and freely. If a driver were to run his or her battery totally empty then how would there be enough energy to move the paw? Presumably on an electrically powered solenoid of some sort. For that matter would the VDS even work?