[Piskvorrr]

One of the approaches used on long-distance buses is "track head position and angle." If you're "looking" into your lap or into the ceiling while driving, that's a fairly reliable signal that something is wrong, never mind how you're holding the steering wheel.

[ghaff]

The technology is almost certainly there to very aggressively monitor "eyes on the road" and quickly blare alarms if they aren't. It's probably fair to say that would be a very unpopular auto feature.