Looks like PMC to me.
Or... and hear me out... Feds deliberately masking who they are with gear. I'm willing to bet there were a couple of black Tahoes nearby with some Olympic grade sprinters all in black inside in case this guy tried to rabbit.
Their gear is unidentifiable. Uniforms unidentifiable. They aren't kitted out for running, and yeah, there's a lot to grab on, but I'm willing to bet they're geared up for long term hold out of several hours if necessary along with enough ammo to suppress a crowd if need be.
And they didn't search him. I've seen that tactic a time or two. Cheap rental vehicle rented with basic slush-fund backed debit/credit cards that look like they're from Wal-Mart that running any plate will just show a nearby rental agency not any government agency and trying to trace the credit card just gives "J. Johnson" or "J. Smith" with a bullshit address (that's actually used as the IDer in the gov grey database) so no figuring out by civvies where they're from. They'll get him in the van, black bag over the head, transport him to a parking garage that's been allocated for this. They'll pull him out, strip him, photograph and film it, putting his stuff in a Tupperware container as they inventory it, do his biometrics, give him a shitty jumpsuit, then rerestrain and black bag him, and drag him off to the Tahoe, where he'll be moved to a plane, or load him up on a bus to sit and wait till the bus pulls out and hits the Interstate on its way to a nearby prison that has already cleared a wing for this.
It's either PMC operating under State Department or Department of the Interior auspices, or Feds running a bagging op.
