(at around 11 mins) The numbers on the jerseys of the Baseball Bowie's gang members (1, 10, 16) signify the date that David Bowie died - January 10, 2016.
Show creator Steve Conrad composed and recorded the guitar arrangement that the busker ("Tenderloin Mike") plays in the first minutes of the episode.
The license plate on Carpenter K. Smith's limo, which reads "P PGL UCS", represents Steve Conrad's first three TV projects (Patriot (2015), Perpetual Grace, LTD (2019), Ultra City Smiths (2021)).
Detective David Mills is the name of Brad Pitt's character in Se7en. Similarly, a naive rookie cop who transferred to the big, evil city with a sense of purpose.