Ron Riggs, a Transport America driver from Cadiz, IN, rode off on a new Harley-Davidson Fat Boy as the winner of the Ambest Ambucks giveaway. Riggs became eligible for the sweepstakes when his Ambucks card was registered after purchasing fuel at an Ambest location and was randomly selected from more than 300,000 Ambucks card members. The company plans to award a Harley-Davidson Sportster in its third quarter giveaway in September.