I. Any person who violates any provision of this chapter is guilty of a misdemeanor. The superior court shall have jurisdiction in equity to restrain and enjoin the violation of any provision of this chapter.
II. The duty to institute actions for violation of this chapter, including equity proceedings to restrain and enjoin such a violation, is hereby vested in the consumer protection and antitrust bureau of the department of justice. The attorney general may prosecute misdemeanor actions or institute equity proceedings, or both.
III. This section shall not be deemed to prohibit the enforcement by any person of any right provided by this or any other law.
IV. The misdemeanor provision of this section does not apply to a seller's breach of a contract subject to this chapter.