Going to pick up car from body shop what should I look for?

[np2004]

I am going to pick up my X5 4.8i from the body shop around 5pm after it was involved in a hit and run in a grocery parking lot over a week ago. The damage caused my rear tailgate to be replaced along with painted since it does not come from BMW pre-painted along with the top portion of the trunk to be repainted to blend in the new rear tailgate. The rear bumper was also replaced and painted in areas needed. What specifically should I look for before accepting the vehicle from the body shop and what specific questions should I ask them? I have already verified numerous times that no structural damage was done to the vehicle. Fortunately the vehicle that hit my X5 was raised so the damage was to the tailgate/bumper and since it was in a parking lot the speed was slow. Thanks