Shawn and Gus make a reference to the The Dukes of Hazzard (2005) remake and how the new plot with the race car driver was very dumb. James Roday, who plays Shawn, also played the race car driver.
While talking to Ruben (Alan Ruck), Shawn called Gus his "black Cameron." This is a reference to Ruck's role as Cameron in Ferris Bueller's Day Off (1986).
All of the major characters in the episode are played by actors/actresses who have guest starred on Psych in previous episodes. In fact, every credited cast member was on at least one other episode.
During a conversation with his father, Shawn mentions how acting like lawyers without the law degree would make for a great show, then looks at the camera. The show Suits (2011) has the very same premise, with a smart wiz kid without a law degree being a lawyer in a big law firm, in which Dule Hill is a cast member.
Spot the Pineapple: in Gus' to-go box, there are slices of pineapple.