It is unlawful and a misdemeanor for any person, firm, company, or business to purchase any load of forest products, including coniferous trees, Christmas trees, sawlogs, poles, cedar products, pulp logs, fuelwood, etc., without proof of ownership as specified in subsection (a) of section 18-4628, Idaho Code, or to fail to retain a copy of that proof of ownership for a period of at least one (1) year from the date of purchase.