I knew you'd know, since you've posted that you've shopped there.
For those who haven't had the...........um, pleasure, this is located at the entrance/exit of the store. The barrier separates incoming and outgoing traffic.
Incoming (where all the ads are) is on the left and outgoing (where they hope you'll still have $2.00 left over after shopping) is on the right.
Any winners here on the Hackensack Market arcade claw machine? I've never seen anyone use it.