I wouldn’t say it’s completely insane.
It’s a modification of the trolley problem. The “do nothing” path goes downhill and has a hell of a lot more bodies. The switched path still has bodies but at least it’s uphill and you’ll have a chance to slow it down or stop it.
On the windshield I’m totally okay with this type of vandalism. It cleans up easily with alcohol and everyone will know this guys a douche canoe until he can do it.