Ok after 24 hours of baking in a ziplock bad with rice, it powered up this morning and I was able to take a shot, but I still went ahead a placed and RMA. Hopefully they don't notice it was submerged in water
Update: They accepted my RMA return and will be sending me a new flash. Woot! glad this event was only a minor setback. I got the flash because of Boon and Greenterra. One of these days I hope to take pics like them.