Ive tried to just push it back down on the roof, it just pops back up. That being said, I havent looked at the manual youre talking about to see exactly how this thing snaps into place but I can say that the portion of the a-pillar finisher thats warping seems to be the only part of the finisher that is out of place, everything else seems in order. What boggles me (besides how this started) is the fact that after ive driven the car a bit, it sits back down (mostly) properly against the roof.