A crook with a snake tattoo on his neck showed his sentimental side when he stole a minivan in Harlem — then returned it when he found a terrified 9-year-old girl in the back seat, cops and sources said.
A 56-year-old man had just unloaded his younger daughter, 7, from his gray Honda Odyssey at East 107th Street and Third Avenue in East Harlem around 2:30 a.m. Sunday when the creep hopped behind the wheel and drove off, according to authorities and police sources.
The frantic dad flagged down NYPD cops on the street, who launched their search for the thief, police said…