I had my fence stained today with "Superior" waterbased stain. To my dismay, the contractors also managed to spill this stain on my concrete driveway. They appeared to have tried to clean it by hosing it down with water. Well, it seemed to have pushed it all over instead of getting rid of it. I now have a significantly stained concrete driveway. Is there any hope of cleaning this off at this point? Any suggestions for cleaning? Need to understand the options when I address this with the contractor!

Thanks!