The people who stay at the Boardwalk are the ones who can't find a place to park because of the people who park there to get in and out of Epcot quickly. The people who say it is okay do not stay there and do not struggle to find parking.
This is what our reservation states:
- Due to limited parking availability at both Disney's BoardWalk Villas and Disney's Beach Club Villas, we highly recommend all Disney Resort Guests take advantage of our complimentary transportation options. For Guests arriving in their own vehicles, please be advised that only valet parking may be available. For Guests traveling to Epcot, please utilize the Epcot Guest Parking Lot.
Going to Epcot? Perfectly clear--utilize the Epcot lot.
Maybe if you still cannot understand, tell the guard at the parking entrance you have FPs for Epcot (don't understand why you only have one????) and can you park at Boardwalk and walk over. Common sense tells me he will tell you there is a big parking lot at Epcot for people going there.
And as I tell my kids, it really doesn't matter how many people tell you doing something wrong is okay. It never will make it right. The way you keep asking here tells me your heart tells you that. The rules are what they are.
Enjoy your trip.