Killing the driver sounds too drastic. The tweet would probably lower your social score, which in turn is in violation of the Apple EULA ("Our exclusive products may only be used by persons with high social score"), stopping the car and blaring the alarm "Please disembark.".
And since you're in the middle of the highway in rain, you don't get out. "Your license to use this car has been terminated. You are now trespassing. The authorities have been alerted.". And then the police show up and shoot you because their data mining software says it's mostly black people that have such low social score, so the iGlasses the cops have say you are black.
Also, the CO2 scrubber in the car is automatically turned off for low status individuals. (Non-plus-persons live in a perpetural brain fog due to elevated CO2 levels in the atmosphere. Hence non-plus-persons are by default declared legally insane and are automatically removed from voting rosters.)
A large part of the population too tired to think, but at the same time constantly overwhelmed and possibly very angry about stuff they can't quite put their finger on? A politician's dream, why wouldn't they be allowed to vote?
And since you're in the middle of the highway in rain, you don't get out. "Your license to use this car has been terminated. You are now trespassing. The authorities have been alerted.". And then the police show up and shoot you because their data mining software says it's mostly black people that have such low social score, so the iGlasses the cops have say you are black.