Have you already tried putting the lens in a dry place (with the covers on both ends obviously) with some silica gel pellets to dry it out? You know, those little packets that you get in shoes boxes and purses that say "do not eat" on them
. It may be enough to draw all the moisture out if you do it several times and there's not puddles in your lens or anything, though you'll need a good amount of packets. Might be something to try if you're willing to wait a day or two before you send your lens in to be fixed for the next month or two.