§ 12. Forfeiture of commodities exposed for sale on Sunday. In addition to the penalty imposed by section four, all property and commodities exposed for sale on the first day of the week in violation of the provisions of this article shall be forfeited. Upon conviction of the offender by a justice of the peace of a county, or by any police justice or magistrate, such officer shall issue a warrant for the seizure of the forfeited articles, which, when seized, shall be sold on one day's notice, and the proceeds paid to the overseers of the poor, for the use of the poor of the town or city.