I'm thinking yes, but feel free to correct me if I'm wrong. The reason we don't pay at resorts is it is built in with our dues, not because they want to help us out. It's not built into our costs at other resorts, though. I'll be curious to see if I'm right.
As far as the last time I heard, you do have to pay parking fees for non dvc resort stays. If you’re staying in a villa paying cash (as far as I know), you don’t have to pay parking fees, but for non dvc stays (etc pop century or port orleans), you do have to pay parking fees for sure.