I'm not really sure how that works Gary. My dumb as a post manager believes he's a world class lawyer when it comes to things like that so I've have a lot of misinformation and conflicting info over the years. It's not something I have to deal with, so I've never researched it for myself.
I "think" as long as they pay their bill and acknowledge by receipt of their copy of the repair order they can do what they want.
I mean, if some stanky azz nose picking dipstick like my manager told me I couldn't have my car back, when I own it, his face would be meeting the floor.