Virginia State Police troopers say a woman driving a 2005 Chrysler hatchback was driving erratically on I-64 near the 234 mile marker. They say she was speeding up, slowing down and weaving.
Troopers pulled the woman over on suspicion of driving under the influence.
However, troopers say they discovered that the vehicle was actually a mobile meth lab and that the woman was cooking as she was driving.
The situation prompted a HazMat investigation by York County Fire and Rescue, which shut down the interstate for several hours early Tuesday morning.
"The biggest concern when we're talking about mobile meth labs is a flammable or explosive situation because of the nature of the chemicals that are being used," says Lt. Rich Burgess of York County Fire Rescue and Safety.
The woman, identified as 39-year-old Christie Ann Smith, was charged with driving under the influence of drugs, two counts of possession of a controlled substance, false identity, no valid operators license, driving while suspended, and manufacturing methamphetamine.
Smith was taken to the Virginia Peninsula Regional Jail where she received no bond.