For Baja Peninsula Entry Ports Vehicle Inspections

I think there is an allowable dollar limit of goods that the Mexican citizen can bring back into Mexico. And that is "per person".
My cousin-in-law (along with wife and son) visited us in Arizona. He drove his pickup from GDL. When he left for home, he had the truck bed half full of new and used stuff, including an ice cooler full of Alaskan Amber beer, that they purchase here in the US. It was all legal according to him.