If you have an annual pass (and if I lived an hour away, I certainly would) that will entitle you to free parking at the theme parks.
You do not get free parking at the parks simply by virtue of being a
DVC member, you must be staying at a DVC resort for that. You are entitled to free Valet parking at DVC resorts that offer that service by showing your DVC membership card. However, tipping the valet is appropriate...so it will still not be "free."