Need advice and also a warning.

roccodart440's suggestion is exactly what to do.
My '69 Dart had been in a paint shop for just over a year when the shop owner told me he wasn't going to promise a completion date. I called the local police and arranged for them to meet me at the paint shop. I then showed up unannounced with a trailer and told the owner I was there to pick up my car. He first refused to let me take it. I told him the police would be there shortly and he changed his tune to telling me I couldn't take it because his secretary wasn't in that day and paperwork needed to be written up first. I told him he better find a piece of paper and a pencil and start writing.
When the police finally showed up he'd changed his story again and had the paperwork all ready to go.
He lost his business to creditors less than a month later - I was lucky I got my car out in time.
Go get your car.