Imagine driving in a remote road on a cold night, no cell signal, a deer crosses the road and you swerve to avoid it. The car thinks your drunk and kills the car.
You're stuck, no cell signal, good chance of hypothermia.
A bigger, real-world problem is that cars with lane-keeping assist will steer you back towards the deer.
Some of the earlier EVs I tried had lane-keeping assist so brutal that it was like trying to steer a car with a broken power steering pump belt, if it didn't want you to change lanes - genuinely dangerous.
The Kia EV I tried a few weeks ago just felt like it was tramlining a bit when I changed lanes without indicating (no real need to indicate, on a completely empty road).
I was visiting my parent's home recently and driving their new car. Was driving down a road and there was some debris in my lane, so I started to steer to the outside of the lane to avoid hitting it, and the car decided to apply counter steering input to keep me in my lane, pushing me back towards the debris, ignoring my commanded steering input. The fact that stuff like this exists and is common now and is wildly accepted is absolutely insane to me.
You're stuck, no cell signal, good chance of hypothermia.