State makes big fuss over local couple's vegetable oil car fuel.

DECATUR - David and Eileen Wetzel don't get going in the morning quite as early as they used to. So David Wetzel, 79, was surprised to hear a knock on the door at their eastside home while he was still getting dressed. Two men in suits were standing on his porch. "They showed me their badges and said they were from the Illinois Department of Revenue," Wetzel said. "I said, 'Come in.' Maybe I shouldn't have."