Notwithstanding any law to the contrary, any farmer, as an owner, lessee, occupant, or person otherwise in control of land, who allows without compensation another person who is employed by or who is an agent of a nonprofit entity to enter upon the land for the purpose of removing any crops remaining in the farmer’s fields following the harvesting of the crops, owes that person the same duty of care the farmer owes a trespasser. For purposes of this section a nonprofit entity is an entity that is exempt from federal income tax under 26 U.S.C. § 501(c)(3).