The idea was to seek spots in the city where public web cams are pointed at, and paint QR codes on the ground at those spots (using a template), linking to the camera stream. So when curious passerbys scan the code, they see themselves in a camera stream and feel "watched".
Welcome to prison planet, the silly conspiracy theory that only weirdos believe in 1990.
And then the agents run out of the office and get to that part of the city in a couple minutes, as if they were in Mayberry instead of NYC.