There is an edit in "Just one bite." It was noted in the note section, but here I'll make it more clear. So, in the episode, when squidward says, "there it is!" in the edited version, you can already see the patty vault in the customer windom, and the camera zooms into the window and once it stops zooming, squidward is already in the room, no alarm system at all. It probably was too violent.