In this episode, Andy is seen wearing a short sleeve button up that is tucked into his pants (similar to how Dwight is always seen). This continues the pattern of Andy mimicking certain parts of his boss's lifestyle in order to gain acceptance.
When Dwight calls Mose at the end of the cold open and says "Mose, you'll never guess where I am right now" and Mose yells in joy, it's a reference to the last scene of the movie Working Girl (1988).
First episode that Jo has dogs other than the two Great Danes.
During The Pledge of Allegiance Oscar stops mouthing the words when it gets to "under God" and then resumes.
Jim Halpert shops at Wegmans, an actual grocer - as evidenced by the shoppers club card in his wallet.