It is the intent and purpose of this subchapter to clarify the posting law of this state. However, this subchapter does not set forth the exclusive method by which a property owner or lessee may notify persons to not enter or remain upon their property, nor does this subchapter repeal or modify § 18-11-301 et seq., which limits the liability of landowners to persons gratuitously utilizing their property for recreational purposes, nor does this subchapter repeal or modify § 5-39-203 which is the provision of the Arkansas Criminal Code relating to trespass.