Cool deal and thanks for the post---out of curiosity, what did he charge for the axle "rotation"? It wasn't difficult as I had the back end apart doing a full brake job but would still be curious if he broke down the cost.
For anyone who does this, like the FSM says---do not let the axle just drop down when removed from the hub. Support it at as close to the connected angle as possible while rotating/cleaning it off.
As long as you are back there with the car up on jack stands you might as well change the read end fluid also (I did).