A person who assaults a tax collector who is performing an official duty is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 12 months or a fine not exceeding $500 or both. A person who assaults another person to prevent that person from bidding at a tax collector’s sale or because that person bid at a tax collector’s sale is guilty of a misdemeanor and on conviction is subject to imprisonment not exceeding 12 months or a fine not exceeding $500 or both.