Officers and a hazmat team responded to a suspicious car and smell on westbound I-66 Saturday afternoon, Arlington County police said.
Crews arrived to the scene of westbound I-66 at Rosslyn for the suspicious car with unknown contents.
Officers arrested Angela Hartley, 29, and charged her with two counts of possession of a controlled substance and paraphernalia. She was held on a $2,000 bond.
Gary Smith, 37, was arrested and charged with possession of a controlled substance. He was held on a $2,000 bond.