Sorry, already been down this road with a friend that is a retired cop that actually worked a couple occasions a president spoke, both in uniform and out and all the local cops wore weapons. This was just blustering by either the SS or Trumps people.
In addition he also was around presidential relatives that came to town on mulitple times, flying in on AF2 as well as other government aircraft.
Give it up. Unless you can show the cop here had been cleared and posed no threat at all in any way you have no grounds to stand on, just attacking the SS for following SOP Security procedure in today’s world.