After Mister Weiner kidnaps SpongeBob and tells him that he's been promoted, he's wearing his Weenie Hut hat. In the next shot, he's wearing his Krusty Krab hat. Then in the shot after that, he's wearing his Weenie Hut hat again.
In this episode, SpongeBob didn't know what a hot dog was, but he knows what they are in "Walking Small" and "Krusty Dogs".