Airport Transportation

Since you had three pieces of luggage with you, you may have really needed to have someone pick you and your luggage up at the curb. If you were able to navigate a few hundred meters with your bags, you can start walking toward the entrance/exit of the airport. There are always taxis waiting for passengers at the entrance/exit. They charge much less than the officious airport taxis. Of course, for Official Tightwads such as myself, just walk outside the airport parking lot and there are combis (on the right) that will take you to the Mercado Municipal en el Centro. The current fare is MXN$21 pesos. (Careful: The combis on the left across the street will take you to Barra de Potosi. Just yell out "Centro" and someone will help you choose the correct combi.)

Been coming for 25 years....until these last two trips, never had a problem getting the collectivo. Had 1 suitcase, 1 carry-on and a backpack: too much (in my mind) for a combi, but admittedly, I'd forgotten about a taxi just off airport property. The only time we had done that, the airport taxi mafia had pulled us over on the highway and threatened our driver. Maybe that's why I'd forgotten that option.
Anyway, as some gringo will be sure to remind me, it's only money.