If you weren’t driving home for the holidays Sunday, the promise of a fully automated toll system on the Atlantic City Expressway became a reality. Drivers can forget making sure they’re in the right lane to pay cash. Neither a change basket nor a toll-taker will be available. Instead, gantries along the 44.1-mile stretch will keep track as vehicles continue on their way. The move is meant to reduce congestion, improve safety and enhance the customer experience, according to the South Jersey Transportation Authority.