Look at it this way, the old dude is a creep and probably has been getting away with this stuff for years. He knew ALL ALONG he wasn't gonna play nice, and thought he could scam you and the cops into giving up. If he was 60, or 40 or 30 would you let him get away with it? Heck no. Just because the guy is old doesn't mean he isn't a bad person. Drop the hammer on him.