Hoboken, NJ**At the Garden Street Garage, there are no attendants, and parking takes less than a minute. Drivers don't even enter the building. They simply pull into a docking bay, turn off their engines, swipe their credit cards, and walk away. The 324-car garage does the rest. Vehicles are lifted by an automated elevator and hoisted onto steel pallets by an electro-mechanically driven carrier system. Custom software works in conjunction with Cimplicity, the automation program used by many General Motors manufacturing plants and NASA facilities. Because the garage does not have to provide circular ramps or space for drivers to maneuver, it fits three times as many vehicles as conventional garages. An added plus: The absence of ramps saves thousands of gallons of gas every year.