Dirty Dirty Cars

I need to do a mass car washing... all the cars a filthy, with the exception of the 67 Eldo which has been under a car cover the last few months. though I wouldn't be surprised if it wasn't clean under there, every time the gardeners come by they use leaf blowers to "clean" the yard, and in the process blow the cover off the car (last time this was evidenced by the fact that the car cover was stretched over the antenna instead of having the antenna go through the small hole I put in the car cover). It really drives me crazy that there are people coming to the house every other week who are touching my cars.