I agree totally.
None of this smells right. A kid who should have been strapped in gets out above a 35 foot cliff where they were going to feed the ducks? Frankly, if a car can roll down the hill into the water and still start, it’s not exactly a steep, life threatening drop - more like the kind of thing I’d have jumped off at that age just for fun. I’ll bet a dollar the guy either forgot to put it in park or set the brake and he cooked up this story to save face. “Just don’t tell mommy...”