All good advice, above.

However, at this point, I need to add the critical item of having all communication in writing from this point forward.

Make sure you document every single item that is not to spec in writing and send it to the shop via certified letter. The insurance company gets a copy of this document.

If they take the car back and make a half-assed attempt to fix it............send another letter and carefully document what was done............and what was not done. It's the only thing that you'll have to fall back on.

Whether Progressive gets behind you and withholds the money from the shop will be the real question. You really don't want to be taking the shop to small claims court (if the value is even below the small claims limit).