Bad weather, stay away from National @ MSN
Until then, don't rent from National @ MSN. My luggage was covered with mud, and soaking wet. With the way the weather is in Wisconsin, it is best to rent from the other companies, that have cars in the parking structure. Female, in the dark, was kind of scary, since I got in around 11 pm.
I have another rental with them in LAX, hope it is more pleasant.