IMO residual losses should be covered as well, at least in the case of a business operation crashing someone's car.
What happened here is pretty clear. Someone decided to go for a joyride and crashed it, and now the owner is taking the loss (pending possible court proceedings or dealer "goodwill"). Its one of those (many) things in life where the offender does not bear the full risk of his actions.
Risk adjusted basis the oil change should probably be free. Figure $50k residual loss and a 0.5% chance every time that someone crashes it on a joyride. Very simplistically, that's $250 at risk every oil change. How much is the oil change?