Reggie deals a drug called "Jingle Jangle". "Jingle Jangle" was a hit song by the Archies, the follow up single to "Sugar Sugar".
In episode 2 the exterior shot of the courthouse is actually the Bedford County Court House on the square in Shelbyville, TN.
This episode was named after the famous painting "Nighthawks" by Edward Hopper, which depicts an old fashioned diner.
The scene with the Pussycats singing on the roof of Pop's Chock'lit shop when Betty is trying to save it, is a nod to the scene from Empire Records (1995) when Coyote Shivers & his band are on the roof singing "Sugar High," while trying to save the record store.
3rd time Jughead is shown in public not wearing his trademark hat.