One of my brothers in law did that same back in the early 80's. He just bought his toyota pickup (4x4 short bed) and decided to run down this hill through a mud hole and did the exact same thing your brother did. There were 8 miles on the truck though

There was a guy that lived near this particular place and had a big old 4x4 ex-military tow truck. Hauled him right out - thought it was pretty darn funny too.
Another brother in law put gasoline in my father in law's toyota pickup - problem was it was a diesel pickup...