The white marks below the tail lights go across the back bumper, looks like that was the contact point for the cover all those years.
This is the thin paint that goes across the halo, again this is where the cover laid all those years.
There are also some other areas where the sharp lines on top of the fenders above the bonding strip show some gel coat as well. I know this is fairly minor but the car is so perfect other than the paint that it's kind of a shame even though you have to look pretty closely to see it. It still drive me nuts knowing it's there.