Deals via Facial Recogition

In CWorld:  A piece on Facedeals.  " ... The system, dubbed Facedeals, uses cameras placed at the doors of participating stores and facial recognition software to identify users of the app and then offer them customized deals based on their history of likes and interests on Facebook ... ".  We had examined a number of companies that were using facial, gender and age recognition using cameras.  Here it is positioned as 'checking in with your face'.   A Minority Report kind of development.  It was determined early on that people felt uncomfortable when it was obvious that recognition was involved.  Gender recognition to alter ad presentation did not cause the same reaction.   Had not heard of this particular idea, but linking to Facebook content takes this yet a step further.