>>120155297It made more sense in that dream sequence where Joker failed the nuke plot, and Batman just decides to snap his neck while taking him to the police. Then he parks in front of Gordon in full daylight, comes out of the batmobile with no mask on, dead Joker in the other seat, and says "I'm here to report a crime".
To be honest if I was Gordon, I just would've said "I see no crime and damnit Wayne the playboy shit does not allow you to waste the time of law enforcement, now get out of here".