Again...I'm not arguing whether the rover was in the right or what he was obligated to do. You're right, he has a reasonable expectation to believe nothing should have happened...but it did and that brings me back to my point, eveyone else on the highway that day seemed to come out the other side just fine. They didn't run anybody over, they weren't pursued by a biker gang, they weren't dragged from their vehicle and beaten. I don't think it's rocket science to figure out how those other people figured out how to avoid that mess.
Here's the way I look at it...I go to the movies. Somebody down in the front row starts spraying people down. I have a reasonable belief heading to that movie theater that I'm safe, and that someone starting a shooting spree is illegal and shouldn't happen...but guess what, it happens. I'm not gonna stand on my soap box and say the guy down front shouldn't be shooting at me. I'm not going to remain in my seat equidistant from all the doors for multiple escape routes until the shooter decides which aisle he's going to go down. I know I can't win that fight, and I'm not going to sit on my high horse, thump my Bible, recite laws being broken and tell people what shouldn't be happening...because it is happening. I'm gonna get the fawk out of harms way.
I think most people have enough sense to realize a bad situation and understand what they have to do to avoid. Regardless of who is right or who is wrong, I doubt very much that most people are going to assess a risky situation that they can't win and are going to stand their ground on principle and put their family in further danger.