Yep, for ribs you won't eat that day, don't finish the cooking. Get 'em to safe temps (I know, hard to judge or measure with a probe). I had 3 slabs of loin backs smoking a couple weeks ago which I knew only 1-1/2 to 2 slabs would be eaten that night. So, I yanked the 3rd slab and hour or so early, foiled and rested for about 3/4 hour, then popped 'em into the freezer for an hour to quick-chill, then into the fridge overnight. I reheated them @ 275* in the foil for almost an hour, and they were moist and still had a light tug on the bone.
It does take a few times ti get them the way you want on the reheat...kinda like fiinding the texture you like to begin with. Foil, no foil, etc. Just don't finish the cooking 'til you reheat.
Stay with it...you'll find that groove where it all comes together. You'll know when it happens, 'cuz it feels GREAT!
Eric