The masks the robbery gang wear resemble the mask worn by Michael Myers in Halloween (2018), which was itself based on William Shatner's face. A cast of Shatner's face, made for the B-grade horror film The Devil's Rain (1975), was later used as a model for a commercially-sold "Captain Kirk" mask; the mask Michael Myers wears in Halloween (2018) was one of those same "Captain Kirk" masks, painted white.
Shawn tells Gus it's not a big deal they got fooled because "It happens to us like once every seven days" referencing that there is a new episode every 7 days.
Spot the Pineapple: the USA network says there is no pineapple in this episode, but many fans believe a bush outside the police station is shaped to look like a pineapple.
Up to 20 Bronze pennies were struck in 1943 by mistake, the most valuable being a single one struck at the Denver Mint. A coin show would certainly say where the penny was minted. 19:00
William Shatner plays a character in this episode yet his "Star Trek" co-star, George Takei, appears as himself in an earlier episode at a Comic-con -like event.