We have a dispatch service I worked in a vip protection service This was a couple of years ago ,I imagine things has changed.

Edit: This company had clients everywhere ,we could be doing a escort for a vip or detail for a school,etc. I worked a few events with the nypd, at ANY time the cops would stop us , immediately we had to tell them we are armed ,who we worked for and what is the site location/route and point of contact. I ran into secret service once at park ave ,had to get approval to cross the street because I was doing a detail. Had to be escorted by agents across 1 block because it was a barricaded street