Could be? I do not know. I was at a meeting and my car got broken into, and they paid me nothing. I was "on the clock"
I would have raised hell about that one. Did you file a claim with your own insurance company? (I'm sorry if you had to go that route) If you did, your insurance company should be going after UPS via subrogation, and should reimburse you any out of pocket expenses (deductible, etc). Unfortunately, it's still a mark on your insurance history, and will be taken into consideration come policy renewal time, even if you switch to a different insurance carrier (that mark on your insurance history will follow you).