The term at retail at a roadside stand as used in § 981.13 shall be defined to mean sales for home use and not for resale which are not in excess of 100 pounds net kernel weight to any one customer per day. Sales of almonds at certified farmers' markets in compliance with section 1392 of the regulations of the California Department of Food and Agriculture shall be construed as “roadside” sales for the purpose of § 981.13 where these conditions are met.