Local Target (Tucson, corner of Grant and Tanque Verde) had a bell ringer in front last year, even after this 'ban' was announced. Don't know if ban is simply a rumor, or if the ban allows some sort of managerial leeway.
The ban was definitely in effect for the Montana stores. When I asked about why, the clerk (who was all 20) told me they give 'loads of money' to more worthy causes. That was the last time I was in there store. Me and my money can donate anytime we want to Salvation Army, but I don't need to line Target's pockets ever again.