From delis to bars, businesses are prospering from football fans on Super Bowl Sunday.Norwalk's Ash Creek Saloon on Cross Street was crowded with fans eager to watch the Colts and Bears square off in Super Bowl XLI. Gaetano's deli says they sell so many heroes for the Super Bowl they would, ironically, stretch across a football field.Researchers warn fans to be careful driving after the game. They say the likelihood of getting in a car accident in the hours after the Super Bowl escalates by more than 40 percent due to alcohol consumption, fatigue and inattention.