Typically, the greeting card space in grocery stores are not managed directly by the store but by the greeting card jobber. The jobber takes care of the racks, stocking and sorting, etc. Your issue is with the likes of Hallmark which has been round-the-bend lib forever. They were a major factor behind the delay in MO getting concealed carry since Hallmark is based in KCMO.
Actually I just got off the phone with a representative of this store chain, and he admitted he was responsible for allowing certain Hallmark cards in the store.
I had a long, respectful but determined conversation with him, and he will see about getting the cards removed.
Stay tuned.