Not sure about near WDW but in some cities around airports you can find hotels that will allow you to keep your car there for a week for a small fee as you travel after you stay there the first night. I'd suggest trying to find one of these, uber over to the resort then grab the car on your way home and go. You can also probably find regular people willing to rent parking on their property for a cheap amount, I like the Spot app in Boston for apartment complexes that do this but there are other businesses like Spot Hero - it's sort of like Air B&B for parking. Lots of places are looking for extra income so it's a dovetail win win.