Is the count for total occupancy or patrons in line? (I haven't been in that location so I don't know the layout).

Total occupancy but larger spaces can be segmented however they might want (order line, dining, bathrooms, bar area, etc.) Just need to separate two sections with a sensor.

1 sensor... ingress = movement into one area out of an adjacent area. Simultaneously, that counts as an egress (that person having moved out of that adjacent area into the next).