I think
Nothing bad should happen. You just turned the front driveshaft and the front differential, but they weren't connected to the front wheels (hubs unlocked) so none of the binding up/breaking stuff would have happened. You probably just spent a little extra on fuel.
If fact, if I haven't had the chance to spin the front diff for awhile, I will do what you did or just lock the hubs and not shift the t-case, just to spin the stuff around and get everything coated with lubricant.