George Carlin was arrested in 1988 for driving under the influence of alcohol. He was found guilty and sentenced to 30 days in jail. This was a very small amount of time compared to what he would have received if he had been convicted of a felony.
However, he still served the sentence because he had violated his probation by failing to report back to the court. After being in jail, he came back to the United States and apologized to the judge and to his family.