The snake apparently slipped aboard at Tim McCarty's Orange County home. It exited through the truck's wheel well at his workplace - causing some excitement around the Spring Hill Ambulance Corps in Rockland County.
The paramedic, who's an avid outdoorsman, initially thought it was a harmless milk snake. Then he saw the rattles.
Says McCarty: "I'm just glad that I didn't step on it."
Experts caught the snake and returned it to the wild.