Hard Times with Hard Water

While away at college, my father took the lil mrs. in for body work. All the dents were taken out, and she received a new paint job. Only now, after I was it, it still looks just as bad as before I washed it. Apparently the sprinklers are messed up and they have been soaking her every day. The hard water left marks that won't come off with washing it. I will have to resort to waxing her and hope that that removes the scars.