Texas closed a park in Eagle Pass to everyone, except those authorized and the authorized doesn't include Federal agents. Google Earth shows the park, how close it is to the border, and a street view of the entrance shows a SUV and a checkpoint. Otherwise, this park has been a problem for more than the current situation. According to reports, razor wire was cut by Border Patrol agents to allow illegal invaders to enter.
Now, we'll see how the Feds react to having their toes stepped on. I'm sure the agents are jumping with joy, but their handlers will probably write a check their asses can't cover.
We'll see.