Argos escaped when a food delivery person was at the front door. Apparently he walled/ran a mile or so away and was seen by someone who waited to see if he had an owner nearby. After waiting a while and seeing that no one came, put a leash on him and brought him on the subway to where he was going to work. He stopped in to the fire department and they sent him on to the local police precinct. The police department had a chip reader and they looked up his microchip info and called us. We were reunited at the police station.