Captain Holt wears his Commendation breast bar above his World Trade Center Breast Bar. When the WTC bar is worn, it is worn above all other medals, but below the American Flag bar.
While the detectives are trying to retrieve the corkscrew from the trash chute, the cops who stop them don't seem to recognize the detectives even though they are from the same precinct (99 is clearly visible on one of the cop's collar pin).
Terry misquotes Top Gun (1986), telling Holt and Gina that Iceman says to Maverick, "You can be my wingman any day." The actual line is, "You can be my wingman anytime."