I have a black car that has sat for about 4 years that I'll be putting back on the road soon. Hasn't been washed in all this time but has mostly been under a car cover. Should I do anything special first other than just wash it? I was thinking about just taking it to our nicest car wash in town to give it a $12 bath. There is a spot or two that started forming a couple tiny spots of rust. Should I hit those with touch up paint first?