probably have to wait until next spring unless you can find it on sale someplace. Not the time for buying potted roses locally (except for the few that HD might have).

Was that the only King's Ransom? When you say it "looked bad", what exactly does it look like? Dead canes? No leaves? I might venture a guess that it came down with blackspot (a fungal disease that can defoliate a plant) and needed treatment with a fungicide, but need a little more info.