If you get there early enough there are spaces either side of Pier Grocery (both sides of the road). Just don't park on Mr. Busby's grass area. Walk through Mr. Busby's and rent any of the chairs there. If you bring your own chairs there is a narrow "pathway" behind the restaurant.
If you want to go to the area in front of the Westin they now have moved their chairs over to allow space for non guests. There is an open area across from the Westin security gate (at the bottom of the hill) where I have seen cars parked.
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