When Jonah approaches Amy in just an apron, a holdall can be seen behind her, branded with the word Oceanic. Oceanic is a generic airline which film makers use so that they don't incriminate any specific airline. For example, it's the airline in Lost (2004).
A muzak version of "Maneater" is playing in the store while Amy and Jonah are painting over a mural of the Cloud 9 spokesman-turned-cannibal.
The sleeping woman featured in the mural that Amy and Jonah are painting over is Nichole Bloom, who plays Cheyenne.
Most of the urine samples on Dina's tray are a dark orange color, rather than being yellow or clearish. While this is not necessarily an error, it would indicate that a large number of the employees in the store are dangerously dehydrated or otherwise ill.
Amy wears a different name tag in each episode. At the beginning of this episode her name tag says "Ella" and after the opening credits her name tag changes to "Heidi".