I'm really not sure about having fake phone calls with people to passive-aggressively get businesses to change to your liking. I think I might give that a miss :p
Plus it would still leave me wondering if the management/owner will take action. Not satisfying at all.
It would probably look as fake as the example given.
Okay, so you did something once -- unintentionally, at that -- and it seems to have had positive effects. Why jump to a conclusion and share it as good advice?