yes, this happens more than you'd think. especially if the store is in a rough part of town. we had this happen at least 3 times to cars on our lot that where down waiting for parts.I had a buddy in the AF who had to take his 2003(ish) Roush into the dealer for some reason. While it was parked in the back it got jacked, basically everything that made it different from a GT was stripped off and it was found on milk crates. We all thought it was an inside job. Another friend's dad was the parts manager at the dealership and couldn't dig anything out of the other employees. It was just hard to believe that an insured car got parked behind a dealership, locked behind a gate and stripped of every specific part without it being a service employee who knew it was there and what it had that was valuable. You ever hear of that type of thing?
about 98% of dealerships employees in the service department are a "fan" of the brand. like just because dude is at a ford dealer does mean much, he might well hate em. I knew a lot of guys like this. not saying what happened to your buddy isn't suspect, and might very well be a lot kid or something but id be shocked if it was.