Sadly that's not the case, only a small percentage of techs are really picky about what they're working on and what they do to protect it from any slip ups
I don't think this should be a concern. This is the least of my worry. I don't think my dealer in Calif. will allow anybody (except maybe himself) go for a test ride after they put in the proper fluids & I think they will have it protected with chains (if displayed) until the buyer picks it up or better yet, will keep it in the back room.