Gingrich, a 37-year-old state legislative manager, was arrested and charged with driving under the influence, police said.
Her 2015 Ford Focus was a state government car, according David Buck, a spokesperson for the State Highway Administration. Gingrich resigned from her position on April 7.
She faces multiple charges including driving under the influence of alcohol, driving while impaired by alcohol, reckless driving, negligent driving, failure to obey designated lane directions and other offenses.
Gingrich is married to Baltimore County Councilman David Marks.
Marks declined to comment on the incident.