I would like to make a point.
Cities are not run by mayors, states are not run by governors, and our nation is not run by our president, or the congress, or the supreme court.
Rather, all of our political entities are run by a permanent cadre of mostly civil service employees. They are the people who really call the shots on a daily basis. No, the dog catcher can't decide to invade, say, Iraq, but he can decide to grab your dog. The local cop cannot have you executed, but he can ensnare you in the criminal justice system, with a simple arrest. There are many unelected, and mostly unaccountable government employees who can have a devestating impact upon your life. This is why I feel that giving up any liberty to the government is a serious mistake. You'll have nothing to fear, until you irritate the wrong employee in the wrong way. We all know people who abuse their powers. It is a mistake to place more power in the hands of those who might, and sometimes will, misuse it.
Now, ask yourself whether you would feel comfortable giving greater power over your rights and liberty in general to the lowest common denominator among your neighboors? That's really what we are discussing here.
WRT hacking On Star, please. It could be done tonight by any number of people with a keyboard, a connection, and some skills. Not hard at all, and far more secure apps have been hacked, sometimes repeatedly.