Nov 3, 2016, 11:11 AM
Although the following information was NOT taken from an official Mexican source, it seems to confirm the other info and not the photo you showed from 2008...
"All of Mexico’s Baja Peninsula, including the states Baja California and Baja California Sur are inside the free zone. Also, the northwest portion of the state of Sonora, where the zone is delineated by a couple of Mexican Federal Highways. The Free Zone includes the portion of the state of Sonora that lies to the northwest of Mexico Federal Highway Number 2, starting at Agua Prieta, extending through Cananea, up to where it intersects with Mexican Federal Highway Number 15 in Imuris. From Imuris, the free zone is again all of the areas to the north and/or west of Mexico Federal Highway Number 15, which runs south through Magdalena, Santa Ana, Casa Blanca, Benjamin Hill and Hemosillo."
I'm thinking you guys are right. Obviously I want to make 100% sure, because I don't want my car to be confiscated. I did see on a sign on westbound MX 2 (east of Cananea) that read "Hassle Free Zone Next 466 KM). Ironically Empalme is 462 km from that point. It would also make zero sense that one direction is hassle free and the other is not. That sign almost has to be either a) outdated or b) wrong.