No vehicle hauling agricultural products from a harvesting combine to the point of first unloading is subject to enforcement action for violations not exceeding the legal limits imposed pursuant to § 32-22-16 or 32-22-21 by more than ten percent. However, the vehicle is only exempt pursuant to this section within a range of fifty miles of the harvested field. If enforcement action is taken pursuant to this section, the fine or penalty shall apply to that portion of the load more than ten percent above the legal limit. The weight tolerance authorized in this section is not permitted on the interstate highway system. A violation of this section is a Class 2 misdemeanor.
SDCL 32-22-42.2