I believe these statutes apply to the situation
Sec. 50-2. Disposition of goods not perishable. All goods not perishable, left with any person or upon any public wharf or highway, and all goods, other than personal baggage of passengers, which are left at any railroad station or in any railroad car or carriage, and whose owner is unknown or neglects to take them away for six months from the time when they were left, shall be advertised one month in a newspaper published in the county where such goods were left. If the owner thereof does not take them away within such month, they may be sold and the proceeds disposed of in the manner provided in section 50-1.
Sec. 50-1. Disposition of perishable property. All goods of a perishable nature left with any person, when the owner is unknown or when the owner neglects to take them away after reasonable notice, shall be advertised at least one week in a newspaper published in the county where they were left; and, if not then claimed and taken away, may be sold at public auction, under the inspection of a state marshal of such county, and the proceeds of the sale, after deducting the expenses thereof and the charges for which they may be liable, shall be deposited with the treasurer of the town where they were left, who shall hold the same, subject to the provisions of part III of chapter 32.
I don’t see any way for you to own the items unless your friend eventually auctions them to the public and you are the high bidder. Your friend then has to deliver the proceeds to the state.