I DO HAVE THE PERFECT ANSWER!!!
We lucked out ...
We were sitting at the wine area enjoying some libations (can't remember the name) - you know, by the Blue Sky Cellar. We didn't know where to go either - but once the pre-parade started, we simply when down the walkway (from the parade route to the Blue Sky Cellar) and were able to plop down right at the entry. Nobody was sitting there, thinking that the walkway had to be clear. There were CMs there and everything - a perfectly "legal" place to sit. Because there is not an adjacent walkway, this area is not considered a thoroughfare that is to remain clear.
This tip will keep you from having to stake out a place well in advance. Go have a drink and stroll on up as soon as the parade starts!