The place the robots making a deal is near subway station of 34th Street/Penn Station in Manhattan after apocalypse.
There are 4 big pyramids with flat tops in the city of the final battle. It seems to express the view of "pyramid was created by advanced culture".
The heads of System Security are represented by the three largest distinct religious philosophies of modern day: Hindu (left), Abrahamic (centre), and Daoist (right)