In a long shot of traffic there is a truck emblazoned with the Bohack logo. Bohack was a supermarket in the 70s and it featured prominently in many other Donald Westlake novels involving John Dortmunder whose girlfriend, May, worked there.
Two characters have musical cigar boxes which play Tchaikovsky's "Swan Lake" . This is likely a subtle reference by director Avakian to his previous movie End of the Road (1970) which used the piece repeatedly.
Final film of Delphi Lawrence.
Takes place in August 1969 based on the Apollo 11 NYC ticker tape parade.