Any person, or agent or officer of that person, employing either directly or indirectly through third persons, or any parent or guardian of a minor affected by this chapter who violates any provision of this chapter, or who employs, or permits any minor to be employed in violation of this chapter, is guilty of a misdemeanor, punishable by a fine of not less than one thousand dollars ($1,000) nor more than five thousand dollars ($5,000) or imprisonment in the county jail for not more than six months, or both. Any person who willfully violates this chapter shall, upon conviction, be subject to a fine of not more than ten thousand dollars ($10,000) or to imprisonment in the county jail for not more than six months, or both. A person shall not be imprisoned under this section, except for an offense committed after

the conviction of that person for a prior offense under this chapter.