Driver was late, drove over a curb, and drove outside the map but somehow I get a bad rating?

What the actual hell? My driver was later than expected, drove over a flower bed/curb in a parking lot to the point I slammed my head into the ceiling, drove outside the map, and I was genuinely terrified of the whole ride. Of course I gave 3 stars, but it took me down from 4.86 to 4.77 because somebody got a little mad. There should be a way to dispute ratings for things like this.