DON’T GO THERE!
Check out the missing in Mexico at the same link for this thread.
The standing joke is if you run into trouble ... the LAST thing you want to do is contact the Mexican police. Mexico is hopelessly corrupt - like Aruba ... .only the violence and kidnappings are in the open.
But, honestly, I was exhausted at the end of the day, constantly looking over my shoulder/listening to native conversations and being on alert for anything suspicious took some of the fun out of it.
I'd go back, almost certainly will, but for anyone thinking about a Mexico visit, for heavens sake use your head! Avoid known trouble areas (Nuevo Laredo, Tijuana, etc.) and stay alert, and enjoy yourself!