I was driving my SPF 2708 minding my own business and entered a driveway which caused a small bump. I then heard a rattling noise coming from under the hood. I stopped the engine and opened the hood and found this plastic (trim?) piece laying in the engine compartment as shown. It was up against the alternator which grinded against it putting the gouge in it as shown in the lower pictures. Any idea what the heck it is and where it goes? I hope it's not a big deal.
Arrow marks the piece and where I found it laying loose
Finished side of piece (6" tire gauge for scale)
Unfinished side of piece