SACRAMENTO — Stanislaus County supervisor Kristin Olsen was arrested on suspicion of driving under the influence Wednesday night in Sacramento.

Olsen was pulled over by the California Highway Patrol at around 10:50 p.m. on Interstate 80 and Greenback Lane in northeast Sacramento near Citrus Heights.

The 44-year-old former California assemblywoman was found to be driving with a blood alcohol level of .08 or more, thus failing a sobriety test, officers told various media outlets.

"I regret having made an inadvertent, careless mistake last night," Olsen tweeted. "As you can imagine, I’m embarrassed and horrified. I apologize to my family and constituents for this incident. It was a hard lesson to learn."

She was arrested and booked into Sacramento County Jail and was released on Thursday.

Earlier in the day, Olsen posted a picture of herself with a tow truck driver on her personal Facebook page.

“I have more car problems than anyone I know, but at least I had a wonderful — truly wonderful — tow truck driver who saved me from being stranded on Hwy 99 and drove me and my car from Stockton all the way to the Mini Dealership in Sacramento,” she wrote. “He even bought me water and salt and vinegar chips.”

Olsen was elected to the Stanislaus County Board of Supervisors in June 2016 and began her term in January 2017, after representing Stanislaus and San Joaquin counties in the California State Assembly since 2010.