Holy crap that sounds like an awful time.
I'm glad we cut of contact with my inlaws because they have the same kinds of conversations.
Rant: Wife got in a fender bender and the passenger in the car got out and try to assault her. The driver, who was the passenger's boyfriend, managed to restrain her until my wife's co-workers surrounded her (this happened right outside of work) but she continued to scream and curse at my wife even though my wife admitted fault and was in tears. The driver and passenger smelled like weed and drove off as soon as they were told the police were coming to file a report. Now the driver of the other car is attempting to go after extra money for a supposed injury despite the collision being a fender bender that didn't deploy airbags.
Because of the above, our insurance has gone up 50% and we're down to one car for a couple of weeks. I was pretty anxious at the beginning of this week relying on a limited range, slow-charging EV as our only vehicle but it's been working out just fine. So there's that.
That sounds a lot worse for those hit by your wife's car, no?