If we wanted to park at Saratoga Springs on our departure day, walk around, check it out a bit and then walk over to Disney Springs for our shopping and lunch before heading home, would they let us you think? Or would that be a major no?
If you want to walk it, park at Disney Springs (Lime Parking lot), walk over to Saratoga, look around, walk back or take the boat back to Disney Springs. Advantages to parking at Disney Springs 1) it free and car stay cool (as mentioned by miTnosnhoJ) and 2) if you buy anything at Disney Springs, you dont have to carry it back to Saratoga.