The beer Boomer is drinking at his grandmother's house, Heisler, is the same beer they drank on New Girl. David Hornsby (Boomer) is Zoey Deschanel's brother-in-law.
The song Ruby, Stan, and Harry rap in the beginning is a verse from La Di Da Di by Doug E. Fresh and Slick Rick.
The large store Annie and Beth are seen stealing big ticket merchandise from is called Cloud 9. This is the same fictitious chain that serves as the setting on the show 'Superstore'.
The name of the grocery store where Annie works, Fine & Frugal, is probably a take-off on a real California-based chain called Smart & Final.