Interestingly, that's part of the issue in OP right? The existing private access road was grandfathered, so he could close it. But if Khosla made any changes re

Interestingly, that's part of the issue in OP right? The existing private access road was grandfathered, so he could close it. But if Khosla made any changes requiring e.g. new permitting, providing access would have ended up as part of that. The difference being public vs private land, and you could theoretically come up the beach (not fully encircled).