A Manhasset man was arrested under Leandra’s Law Friday night after driving without headlights along Main Road in Greenport, according to Southold Town police. David Pegno, 54, was arrested for felony driving while intoxicated after being stopped while headed westbound without headlights shortly before 8:30 p.m., police said. Mr. Pegno was driving with a 13-year-old child in the car and he then failed standard field sobriety tests, police said. He was arrested and transported to police headquarters for processing. Arraignment information was not immediately available. Leandra’s Law makes it a felony to drive drunk in New York with a child under the age of 16.