Yeah, even this big news is giving the store some major publicity. Everyone here is talking about it.. However, I have a feeling people might go to other grocery stores. Thats how people are.
In Germany none of the supermarkets give free bags, you always have to buy them, so most people have canvas bags they take with them, and they can fold into your pocket.
In Spain, where I live now, only a few supermarkets are charging for bags, but some of the provincial governments are now bringing in regulations to reduce plastic use and I think in a couple of years most of the supermarkets will fall into line.