I have a car I have not driven in about 6 months or more. The rotors were 1 month old when I parked the car. Now that I am going to drive it again, the rotors have surface rust on them. Should I have them turned? I hate to because like I said really there is only 1 month wear on them. Or can I just clean them off with a wire wheel? I hate to let the pads clean them as they are as new as the rotors.