Police say the mother later told officers she thought the infant was safe enough because the car's heat was on.
The car was left running in a busy parking lot outside the Suffolk Regional Off-Track Betting Corp. branch in Southampton, on Long Island.
Parents Krystal Rose Downes and Jhimy Alban Vintimilla were arrested on misdemeanor child-endangerment charges. No telephone number could be found for the couple, and police weren't sure whether the two had a lawyer.
