It might make a big difference where this residential driveway is. A Los Angeles driveway that’s got a shade tree by its southern side, you’d probably not want to cover the car. (And you’d want to be extra aware that our air eats rubber.) In places that get much hotter and/or colder and get more rain/hail/snow/leaves falling on it, the benefit of a cover outweighs its potential to attract rodents.