Has anyone noticed the presence of the blue and white Federal Police Services SUV's east of Princeton Texas on 380 lately? Or for that matter, has anyone else noticed any of these vehicles in rural areas lately?

Yesterday on my way in to DFW to work I saw noticed one cruiser sitting on the shoulder, but today there were at least 6, along with some odd looking vans, a couple of local police and several pickups.

I know the Fed Police usually guard courthouses, and assist FEMA, but this is a rural area near our local lake, and I had never seen them outside of downtown Dallas before. It's somewhat intriguing.