Nolan himself was wholly absorbed by the business in hand.

The success of this plan meant a good deal to him, and he told Casey so very frankly; which lightened Casey's gloom perceptibly.
Casey was to drive to Los Angeles--even to San Diego if necessary--and return within a week, unless Nolan's hopes were fulfilled and Casey was held up and highjacked.

If he were apprehended by officers who were honestly discharging their duty, Casey was to do thus-and-so, and presently be free to drive on with his load.

If he were highjacked (Casey gritted his teeth and said he hoped the highjacker would be Smiling Lou), he was to permit himself to be robbed, worm himself as far as possible into their confidence and return for further orders.
If Mack Nolan should chance to be absent from the cabin, then Casey was to wait until he returned.

And Nolan intimated that hereafter the making of moonshine might be a part of Casey's duties.