I recall the legendary story about the late Justice Douglas. Some lawyers wanted his one-Justice recision on an environmental case. They hiked two days into the woods to find the Justice. He read their papers, and signed their Order. Then they hiked two days out to get that Order to the Clerk of the Supreme Court.
Given faxes and cell phones, I believe that Justice O'Connor is already reviewing this case through her Clerks, knowing that it will wind up in her lap. If she signs an Order on the Champs Elisee in Paris, it will be just as effective as if she signed it in her Chambers on 2nd Street in Washington, D.C.
John / Billybob