When personal property forfeited administratively is to be sold, the Commissioner or his delegate shall cause a notice of sale to be placed in a newspaper of general circulation published in the judicial district wherein the seizure was made. The sale shall occur not less than 10 days from the date of the publication of the notice. At the discretion of the Commissioner or his delegate the forfeited personal property may be sold at public auction to the highest bidder on open, competitive bids, or sold to the highest bidder on sealed, competitive bids.