Confirmed with customer service that Grocery Dollars is available at Giant located at 255 Northland Center, State College, PA 16803. However, you will need to have your address in the area and receive the RSVP email to be enrolled in Choice Rewards. Then, you will need to go to the App, click Redeem offers and select Grocery Dollar (mandatory).
You cannot just sign up for this Choice Rewards online or in-store.
Not sure if you will be able to redeem points if you go to the physical store.
I tried changing my address / preferred store but cannot get the choice rewards thing to show up in the App.
Anybody has any success?