Mark,
Given the technical challenges of being so close to sea level, and all the drainage engineering that went into it, I suspect topos were used somewhere along the way. Elevations to make that work are critical. Now, maybe the basic routing, again flat, housing concerns driving some of it, didn't influence the basic pattern to much. Although, you have to leave developable parcels. At the same time, they needed a property line map to leave room for spectator mounds, too. That course took up a lot more acreage than most.
Of course, they could have aligned all that after Pete did a basic routing. Related question, but I wonder how much the presence of alligators influenced Pete to do most of that on paper?