That is the responsibility of the local county Sheriff. If he is not currently patrolling that area it won't matter. If he is it will stay the same. He is still the county Sheriff and if the land is a forest, vacant, or a monument he still has jurisdiction.
If the Nat park svs doesn't patrol it too is not his concern.
In that part of the nation most counties only respond to calls so the cartels will either already be doing their thing, or they won't start.