Your not suppose to leave your vehicle in a resort parking area, to head off to the parks. Not unless of course it is the resort where you are staying at. Normally it is 2 hours or so... I know once we had ADR for Calli Grill for our anniversary, and we had to ask the hostess to call down to security so that they did not tow our car, and she did it for us. They were almost a hour behind seating times...
You have lots of other options...
For the Contemporary you can get on a bus for MK, and then just walk over to the Contemporary...
The Boardwalk is a bit more challenging, you could ride a bus to Epcot and walk through and out the back gate to the Boardwalk... You could pick a park, then wait for a bus to the resort where your ADR's is for breakfast, or any resort on the boardwalk and walk to the resort for breakfast..
You can use Uber/Lyft and go directly over to the resort that you are having breakfast at... then just use the buses to get to the park your going to be visiting that day... and to get back to your resort at the end of the night...
For me I personally would not take a chance on leaving my car and then at the end of the day, when your tired, you find out that your car is no longer where you left it, and then your faced with how to get your car back, and the towing bill will be outrageous...and the hassle of it all... not fun...