Since Georgie got the job at his father in laws garage it shows the beginnings of him becoming the Dr. Tire shown in The Big Bang Theory (2007).
When Sheldon sees the blue portable potty he sees it as the Police Box from Doctor Who. He is then seen dressed like the Doctor. He is in fact dressed like the Seventh Doctor, and the era accurate theme plays( Sylvester McCoy ) which makes this period-specific to the time this story takes place.
Dale, played by Craig T. Nelson, said that he "watches a lot of cop shows". Craig T. Nelson portrayed the Police Commissioner, or the Top Cop, of Washington D.C. Jack Mannion in The District (2000).