If III Corps along with it’s artillery assets were down there (as they should be), they could have used one or two batteries of 155mm or a section of MLRS to eliminate the cartel assets firing upon the CBP.
It is likely that a III Corps Engineer unit will swing through that area next year sometime, and run a few rolls of concertina over the new bollards going in there.
Emplacing concertina is a standing component of the Military deployment to support the border, and they have been systematically emplacing hundreds of miles of concertina. It really hardens the bollards against ladder and rope attacks, which are their primary vulnerability.
That barrier is likely going to divert the narcos elsewhere - it goes in with a powerful package of sensors, alarms and persistent surveillance.