A bag of corn seed is almost an endangered species. None of my ag customers do bags of corn anymore. It’s all bulk totes now for the vast majority of producers, it takes way too long to fill a planter by dumping bags in one at a time.
I don’t do seed corn for food plot customers anymore, it’s too hard to get bagged corn and then the $150-225 per bag price makes it a tough sell.
It’s too early for farm leftovers, most of MN has barely gotten started on corn. Call your local feed store or grain elevator, they may be able to give you numbers of local dealers that may have some bagged test plot seed available.
DT is correct, you will need a grower’s agreement in place for on-patent Roundup Ready varieties. It used to be a Monsanto Stewardship Number, now it’s called a Bayer Stewerdship Agreement. Gen 1 Roundup Ready is off-patent, but everything else still requires a grower’s agreement. Agcelerate.com makes it easy.