I just rewatched the 6+ minute cell phone video and there were quite a few LEOs with tactical gear, including two US Marshalls. At least two LEOs wearing tactical gear that included a helmet. And they all stood around waiting for a special team from Border Patrol.
US Marshall
US Marshall
Sheriff
Not sure what this one is TX State Trooper? End of video shows a few State Trooper SUVs
Local cop?
Not sure how effective that too small of a vest if on that last guy