Self-serve beer is going to be available at Gillette Stadium. The Foxboro Board of Selectmen has amended the stadium's liquor license to allow for the service on a trial basis. Customers will insert a credit card, place a cup under a tap, and choose from one of four options. You’ll only be allowed to get two cups. Attendants will check for valid IDs and sobriety. The goal is to limit overcrowding at concourse concession stands.