Section 3. Penalty.--(a) Any person violating the provisions of this act shall be guilty of a misdemeanor, and, upon conviction thereof, shall be sentenced to pay a fine not exceeding five hundred dollars ($500) or to undergo imprisonment not exceeding one year, or both.
(b) Proof that no person has been misled or deceived, or otherwise damaged by any violation of this act, shall not constitute a defense in any prosecution under this act.
(c) Proof that the defendant did not knowingly or intentionally violate such provision shall constitute a good defense in any prosecution for a misdemeanor under this act.