I am certain if the guy was a real practicioner of ninjutsu, he'd have taken the Twinkies out of all of their MREs and exfiltrated without being noticed at all, AND left the rest of the MREs in their packs...
I was a ninja when I managed a 7-Eleven. How I know? The mass production bakery that makes our daily donuts always puts a few extra ones in the trays along with our regular order. As soon as they are off the truck and in the store, the extras are taken out, placed on the tray and taken to the staff room. The morning shift always came in to find a tray of assorted donuts waiting for them, and an empty space or two on the tray indicating that a couple of the donuts had already been consumed during the night. Nobody really knows how that tray gets replenished every night and nobody complains...