Free: Contests & Raffles.
State DNR land is open for recreational use, period. If the person leasing it for agricultural purposes doesn't like it, they need to take it up with the DNR. In some cases the DNR will allow them to close it to recreational use. But if it were, it would need to be posted. And obviously in this situation the guy was full of it, since the first thing he did was to lie and say you were on private land. I would have got a photo of HIS license plate and turned him in to the DNR.