A Tampa police lieutenant says he found Johnson sleeping Tuesday in a car near the Bucs' stadium.
Tampa police say the lieutenant woke up the 27-year-old. A DUI investigator reported smelling alcohol on Johnson's breath and police say he had glassy eyes and swayed when standing up unsupported.
Johnson was arrested and later released on $500 bail. Jail records did not indicate if he had an attorney.
The team announced later Tuesday that he was released.