Auto Transport Drug Smuggling

Two sentenced on federal drug charges: "Gonzales drove Felix to San Antonio on July 13, 2005. Gonzales drove a Ford pickup pulling an auto transport trailer containing a Mercury. Gonzales followed Felix in another vehicle. A secret compartment in the Mercury’s trunk was used to hide the cocaine, according to federal investigators."

I've heard rumors of auto transport being used as a front for drug trafficking, but this is the first time I've seen any proof. I wonder if this marks a change in drug enforcement strategy?

Maybe he was just trying to figure out a way to compensate for lousy load prices and high fuel costs?