"unsuspecting customers"?
You really are not giving the public credit - how many times was a door slammed in your face or the person home just didn't answer? Do you really think that the public is going to change their perception of JWs and grab a free copy of JW literature just because it is in a mall?
Many of the magazines 'placed' in field service were only taken so that the householder could get back to watching the football game.
Why is it so traumatic that that same literature can now just be ignored?
It is non-productive to complain to mall management that some 'harmful cult' is set up in their hallways. It would be a waste of time - you have no legal leg to stand on.
I say let them have at it - put their stupidity out there in public on display. The numbers will eventually show that their marketing strategies are farts in the wind.