AP Photo/City of Atlanta Department of Corrections

Reese Witherspoon is apologizing for her behavior towards a police officer who arrested her on a disorderly conduct charge after she allegedly failed to obey his instructions as he conducted a field sobriety test on her husband following a traffic stop.

The "Walk the Line" actress was a passenger in a silver 2013 Ford Focus being driven by her husband, James Toth, when an Atlanta police officer pulled the car over around midnight on Friday after noticing the car wasn't staying in its lane, according to the police report.

Toth, 42, allegedly appeared disheveled and smelled of alcohol. According to the police report, he said he'd had one drink and agreed to perform a field sobriety test.

During the test, Witherspoon allegedly became agitated and started to get out of the car twice, receiving warnings both times, the report said.

She also allegedly questioned whether the officer was a real police officer and asked him if he knew who she was.

Witherspoon, 37, addressed the situation in a statement her representative sent to ABC News late Sunday night. "Out of respect for the ongoing legal situation, I cannot comment on everything that is being reported right now. But I do want to say, I clearly had one drink too many and I am deeply embarrassed about the things I said," she said.

According to the police report, Trooper First Class J. Pyland wrote: "Mrs. Witherspoon began to hang out the window and say that she did not believe that I was a real police officer. I told Mrs. Witherspoon to sit on her butt and be quiet."

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Toth was arrested and charged with driving under the influence and failure to maintain the lane.

At that point, the report says, Witherspoon got out of the car and asked the trooper what was going on. After being told to return to the car, she "stated that she was a 'US Citizen' and that she was allowed to 'stand on American ground,'" the report states.

She later said: "Do you know my name?" and "You're about to find out who I am," according to the report.

In the statement, Witherspoon explained that the situation was scary and she was "frightened" for her husband, adding, "but that is no excuse. I was disrespectful to the officer who was just doing his job. I have nothing but respect for the police and I'm very sorry for my behavior."

Her alleged behavior landed her a disorderly conduct charge.

They couple was released later on Friday, and Witherspoon was on the red carpet for the premiere of her latest film, "Mud," on Sunday. She posed for cameras on the red carpet but did not stop to talk to reporters.

Witherspoon and Toth got married in March 2011 after a year of dating. They have a son, Tennessee James Toth. Witherspoon has two other children from her previous marriage to actor Ryan Philippe.

The Associated Press contributed to this report.