"All I can think of is some dude with 1 of those slow basketball size “wax spreaders” from the auto parts store. Lol "
Sounds about right, except that guy wouldn't know to charge $1,700.00, would he?
In my opinion, the guy deserves the chance to make it right. But That would only be if he convinced a now-educated consumer that he both knows how to fix it and that his best effort would go into doing it. Short of that, I'd ask for my money back, and be talking to an attorney if things didn't go well.
If I were to go back to the guy seeking a remedy, I think the only thing that would make me at all comfortable with him trying again is a complete admission that they mucked up. "Yeah, sorry, this one never got passed our wash process, but was put into the finished line and never had the quality control inspection to assure it would meet your satisfaction". Even if I knew that was a B.S. story, I'd at least feel a bit better he has a chance to get it right a second time.
But I can assure you, were it me, this guy would never get a dime more of my money - Not to fix this, and not to work on my cars again. And he'd be doing the interior if he wanted me to be even remotely satisfied. $1,700.00 for a detail that doesn't include an interior? Come on!