Continues the long-running joke of Glenn's vehicle getting destroyed. This time it's because he lets Myrtle drive a big truck in the parking lot, and she sideswipes his SUV.
At the end of every episode the card for the production company Spitzer Holding Company features a variety of items they specialize in. In this episode they list Shades of Grey, Shades Darker and Shades Freed. These are references to the "50 Shades..." series of books and movies and highlight that this is the 50th episode of the series.
The savings in the store's budget that Jonah and Amy find comes to $18,326. If that is enough to save Myrtle's job, at $20 per hour, that means Myrtle was only working an average of about 17.5 hours a week.
When Glenn gets the channel 4 weather man to come visit Myrtle, she is unaware of who he is, saying she watches channel 5. Channel 4 in St. Louis, where Superstore is set, is a CBS affiliated station, while channel 5 is the local NBC affiliate. Superstore aired on NBC, so of course Myrtle would prefer it.
Amy's name tag says "Kim."