Dude
If I recall right you have your approval all you are waiting for is your card right? Now why tempt fate by not filing your AR11? It is the law and you know that.
Just file the damn form AND call VSC and let them know. If your cards have been sent then just ask your neighbor to keep an eye out for them ( You might wait for the cards before you let the post office know of your move, I think there is no rule that you need to let the PO know of your move). If the cards have not been sent then there is no problem the VSC IIO will make the change to reflect the new address and the cards will be sent to the new place. Anyway your call.
While I am at it, you might want to let the DMV know of your address change, I believe that's the law too. <sigh>