You could fuel at
Fays and ask to park long enough to walk to
Sawyer's (black rectangle to the left of the #513T on Maptech map of area - click on Fays, takes awhile to load) and back - call in your order at Fays to expedite the situation.
Or, you could ask
Aquadeziac to bring your order to GYC

for dockside service.
Know anyone at MVYC who could chauffer a meal to dockside for you?