A customer is shown wearing a Cloud 9 mascot costume with blood pouring down from his mouth. In Spokesman Scandal (2016) it was revealed that the Cloud 9 mascot was convicted of being a cannibal.
At the end of every episode, the card for the production company Spitzer Holding Company features a variety of items they specialize in. In this episode they list Prophecies, Oyster Farming, and DNA Synthesis.
Jonah is dressed up as Brexit.
Jonah's British Union Jack t-shirt and the Exit sign is a reference to the British 'Brexit' vote to leave the EU that year.
This episode mentions a stabbing at the Kirkwood store. Since this series is based in St. Louis, they mention actual locations. Kirkwood is a wealthy area of St. Louis with low crime. In a previous episode, a store in Maplewood Commons is mentioned. This is a more likely location for a stabbing.