If it was a stunt by the clerk, then it would’ve been filed in fiction or else left in the stockroom. These are their common tactics employees use when they disagree with the person who places orders.
I haven’t done it yet, but I’ve seriously considered printing out a sheet of labels marked either “Fiction” or “Propaganda” and affixing one to the cover of each pro-0bama book. I know it’s not proper for conservatives to deface other people’s property (even liberal book stores’ property), but I’m getting to the point where legality and propriety may soon be overlooked.