I thought so too, because of the FA marked on the box.
This was taken at the Dallas Airport parking deck at street level, and I agree that it can be considered as a Damp Location.
I was looking for the rule that poined out that the attachment screws should not allow the cover to fall off as shown.
I did not remove the cover. I was also looking for the 3 inch rule beyond the edge of the ring to be considered whenever an extension ring is installed per 300.14.
I too agree that the best way to avoid a problem is to come out of the side of the extension box.
