Well as far as this fact check, it makes sense. Why wouldn’t you want to stop impaired drivers. Also, the bill apparently says nothing about dring driving (although since drinking does impair you, it will probably flag).

www.usatoday.com/story/news/…/11066287002/

According to that, there is no mention of giving control of your car to government/police etc. “the bill in question directs a federal agency to require technology that would detect driver impairment and disable the vehicle in that scenario”

The system “passively monitors the performance of a driver,” identifies whether they may be impaired and prevents or limits motor vehicle operation “if an impairment is detected.”

So its not phoning home or anything, it is sound self-sufficient, so it would probably be pretty easy to disable.