Well it finally happened. I got home Friday and the cover was missing. I think it was blown off in the touchless carwash. It only took like 15 trips through it. I ordered a used one on Ebay but it's white so I'm going to try to wrap it in in black carbon fiber vinyl. We'll see how that looks.
@omar302, do you have the file for this in the instructions?
1. Lower the headliner. Refer to: Headliner Lowering (50105 Interior Trim and Ornamentation, Removal and Installation).