I searched for the nearest CBP Deferred Inspection , but unfortunately they where closed, also we are flying to Arizona and there is no office located there, so I decided to go ahead and bring the envelopes to the CBP located at the LAX airport (Tom Bradley International Terminal) , as it was our only option at this point.... Now we'll just have to wait and see what will happen. If our Green Card will be delayed or they will just say that they don't have any records of us, at least we know what happened and explain the error... Is it any way to check, maybe in 2-3 weeks from now, our GC status? Hope for the best and that they don't screw this up even more ...