Just a quick update. Of course the service mgr played stupid. "Oh, I've never heard of that before", actually he wanted me to talk to the sales department because it must be something that was added. He did not know that the LE comes with a factory sprayed in bedliner

. Whatever.
Anyway, Nissan wanted him to take pics and send them somewhere, so now we wait.
Good news is that he definitely said it looks like a crack or split in the material and not any sort of scratch.
Steve