Sorry I’m late to the convo. I find that I often get conflicting information from officials depending on the individual official or which border crossing.
Anyway, I will be using the CBX tomorrow. Here’s my plan. I will cross to San Diego without the FMM. When I come back to the Tijuana airport, I will have a friend drive me from San Diego. So I won’t even have to deal with Mexican Immigration. I realize I’m not supposed to do that. But there’s know way they would know I even left the country. Make sense?