Interesting article, but the centuries are messed up several times (one example, Frank Robert Pierce being born in 1839, and dying 4 years later in 1943.)
If you follow the link, it says that the parking brake was on when the truck was found. It's being checked by a mechanic. It's also a manual transmission, so it's not that he didn't put the truck in park. Leaving the keys had nothing to do with it, although he's certainly foolish to have done that.
I'm willing to make do with the harder paper. It's easier on the septic system and much cheaper.