An exit in Industrias Militares de Secretaría de la Defensa Nacional answers a narrower question than a Mexico exit. Most sites decide what to show you at the country level, and for them any Mexico address is the whole answer, whether it sits here or in Unidad del Seguro Social en Santa Fe.
The city earns its keep when the check itself is local: what is in stock near Industrias Militares de Secretaría de la Defensa Nacional, what delivery gets promised, what the local results page actually shows. That is the work worth pinning to a city, and the only work that should accept city-level supply as a constraint.
City-level residential supply moves week to week everywhere, ours included. If nothing is live in Industrias Militares de Secretaría de la Defensa Nacional the moment you ask, the reliable fallback is a Mexico exit, and the free Mexico list shows the public pool measured live.