FWIW, earlier today I stopped by both the local Tesla store and later the Tesla service center. Both said pulling up and sitting in their lot would not help as they have not received 8 yet. Even the new vehicles being delivered today (I saw two truckloads full) are still on 7.
So now here I am sitting here at home with the car hooked to my wifi and me staring at the activity light on my modem, wishing it would start flashing.