I'm not sure what you are really asking but if you want to know what you do with food that is "waiting" to be served, someone invented the warming oven/tray/compartment/bun...the bun would be best to transport and works great but....
I'm with all the other backyarders, by the time you are grubbing ribs the best beer will be being judged. Ribs 3-2-1 or 4-1-1 are the only way to go here plus you have clock management. If you go 3-2-1 be careful around the 2 hour section, if you over do it (wrap) out comes a clean rib. 4-1-1 you are a bit more safer getting a better pull off the bone bite. Besides you can openly say this is your first time to all you friends. If you want to get adventurous inject the ribs with butter during the wait time between pulling rubbed ribs from the fridge to the smoker.
Now what kind of ribs you smoking? Is there requirements there?? Type, weight, size and What's the prize ;-) Good Luck, post pictures