When Steve and Roger are walking into the MailBox Copy Store, the store next door is called "P. Falk & Co. Just one more thing...". This is a reference to Peter Falk, who is best know for his role as Columbo, a detective famous for saying the statement "Oh, just one more thing..." when stating one more fact
The "receptionist" featured in this episode, Theodore (Teddy) Bonkers, actually made his first appearance in the season 3 episode, Haylias. Stan had given him to Hayley when she had the chicken pox as a child, and during the fight scene at the conclusion of Haylias, Haley shoots off Teddy Bonker's head. The episode Haylias was also the first episode in the American Dad series to feature Steve and Roger as their alter egos, Wheels and The Legman.
Stan also uses the name Papa Wheelie in season 1, "Stannie Get Your Gun." After he becomes paralyzed and is forced to use a wheelchair, Stan and Hayley perform at a pro-gun concert. The banner outside the event reads "NGA Kids Jamboree featuring Haley & Papa Wheelie."