Tesla is weird here in they don’t have “regular dealerships”. You buy direct from the manufacturer, instead of a private owner dealership chain. Idk how Tesla deliver cars specifically but every time I’ve bought a car you test drive it, then you look it over. You see if it’s missing anything like floor mats or they are adding something like clear vinyl or CarPlay they give you basically an IOU for those thing. Also, if you notice anything like a ding or scratch you get that in writing too. I usually don’t take delivery until everything is there/fixed so I don’t have to go back and forth 10 million times. It sounds like your friends experience was pretty similar.

I have however been inside their service center and know quite a few Tesla mechanics. That’s run quite differently to other dealerships service depts I’ve been in.