State Rep. Jeffrey Wood apologized Monday for acting irresponsibly, saying there was "no excuse for my actions."
The Wisconsin State Patrol did not release details on what led to Wood's arrest early Friday in south-central Wisconsin, far from the northwestern district he represents.
District Attorney Jane Kohlwey said she had not yet filed charges against Wood and was waiting for police reports.
Wood did not immediately respond to calls seeking comment, but he told WAYY radio in Eau Claire he had no plans to step down.
He also told the station how marijuana ended up in his car: "Somebody offered me some and I took it, and for whatever stupid reason got in my car and decided to drive home."
Wood was elected to the Wisconsin Assembly in 2002 as a Republican but quit the GOP earlier this year and was re-elected as an independent.
He is due in court next month.
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