I did the same thing to an earlier pair I had, and to tell you the truth, it didn't seem to affect the performance at all. As soon as I realized what I had done, I wedged the buds into the vents of a window unit air conditioner and left them there with it running all night. The next day they played fine.
Also washed a Sansa Clip DAP at the same time ... the air conditioner trick fixed it too ... played like a champ.
That is encouraging to hear. When I pulled them out of the wash there didn't appear to be water inside (not sure how that happened) so fingers crossed. I'll give them a good while to dry out and see what happens.