Not an expert, but it's a snap on piece that clips and seals the inner wheel well liner to the fender. Must be thetevfor a tight seal for aerodynamics. Ice cars usually just some cheap plastic rivets. Which always fall out.
I would guess any body shop can push it back on. Or you can see if you can pull the entire strip off easily. Or use some tape at the bottom to the fender.
In my opinion, the proper fix for a shop would be remove it, inspect that the gripping surfaces on the trim were not bent or broken, thoroughly clean mounting all surfaces, and reinstall. Some retaining trim is only use once
Guessing the installer did not fully force the trim over the flanges of the liner and fender.
I would not drive far without some tape holding back the trim from the wheel.
I would call Service and see what they suggest: perhaps tape or remove the entire piece.
