Actually I heard another report on WMAL earlier this week that stated that wasn't working either. People still got up in the mornings at the same time, except it was darker longer so they had their lights on longer in the morning. The offset was causing the same amount of power consumption if not more.
Oh hell, the goal of Daylight Savings time isn't to save money, it's to spend money! This benefits golf courses and stores, those were the primary lobbyists for this last law change.