An employee at the gas station in Murfreesboro, about 30 miles southeast of Nashville, called police because the car was sitting at the pump for about an hour on New Year's Day.
Police say a chemical process to make the drug was in progress. Some meth-making ingredients can be explosive.
Murfreesboro Assistant Fire Chief Allen Swader told The Daily News Journal that gas pumps were shut off as a precaution.
Thirty-one-year-old Nathan E. Beasley is being held on a $15,000 bond on charges of driving under the influence, driving on a suspended license, reckless endangerment and manufacturing meth. No attorney was listed in police records.
