Reader Patrick noticed a Rush 2112 reference in the 2012 independent scifi/comedy film The History of Future Folk (the film was released on DVD this past summer). The film tells the exaggerated and hilarious origin story of the real life alien bluegrass duo, Future Folk. In a scene towards the beginning of the film one of the protagonists is chased into a parking garage and runs by a sign displaying the rate for overnight parking - $21.12. You can check out a screenshot here and also watch the film on Netflix (the reference comes in at about the 9:35 mark).