This episode takes place on June 1, 2013.
Kathy constantly knocks on the front the door until someone opens again.
Thom uses the word "shifty" during a conversation with Kathy. This is because Kathy has described him as "shifty" multiple times according to Cal and Thom's conversations.
Cal references a case of champagne that Kathy owes him. Thom asks the reason she owes him it. The champagne is also referenced in episode 7 as Kathy owes him one for sleeping with someone for the first time.