Eminem’s ex-wife Kimberly Mathers pleaded no contest Monday to driving under the influence and fleeing the scene after she allegedly crashed into a parked car with her son and his friends in the car. The 51-year-old mom — who appeared in her mug shot with deep, puffy under-eye bags — had just left her home in Chesterfield Township, Michigan, with her son, Parker, and three of his friends to go shopping one evening in February when she smashed her Range Rover into a truck parked on the street, TMZ reported. Parker is Mathers’ son from a relationship following her divorce from Eminem. Kim Mathers pleaded no contest in impaired crash where she allegedly fled the scene. Kim Mathers and Eminem leave a party together in 2000. ZUMAPRESS.com Police said she crashed into the parked Dodge Ram with such force the truck was pushed 50 feet down the street, according to the Macomb Daily News.…