waterproof car cover for a 64 barracuda

@ch1ll is right. No such thing as a waterproof cover. Why does it have to sit outside at the bodyshop? It seems to me that they should be able to say something like, "We finish the car ahead of you on Friday, so bring your car at 4:30 on Friday, and we'll start on it Monday morning. Once they start on it, there is no reason for it to go outside.