If I remember correctly, he was putting bananas on the conveyor belt at the cash register, but the toilet paper was in a shopping cart behind him; we couldn't tell if it was his shopping cart or belonged to the next customer in line (who was not in the photo).
He was there -- we have no proof he was an overnight guest, either in his own room or staying in someone else's.
It's good to gather evidence, but you have to get it right. We're getting sloppy and letting assumptions & conjecture turn into facts.