Erratic driving in Southbury has led to a slew of charges for a New Haven man.  Southbury Police responded to a complaint Saturday about an erratic driver on Southford Road and located the motorist nearby at the Wheels gas station.  26-year old Rickey Traynham didn't have a license and a stolen gun was found in the car.  He was charged with Criminal Possession of a Firearm, Stealing a Firearm, Weapons in a Motor Vehicle, Misuse of Marker Plates, Operating Without a License and Insufficient Insurance. Traynham was held on bond. He was arraigned in Waterbury Superior Court yesterday.