|A lot depends on what was in the water. If this was clean tap water then you have a fighting chance of recovering something. If it was dirty ditch water then you have little chance.|
Pure water is actually a good insulator provided you dont let corrosion take a hold and with pure water than can take some time. It is all the impurities in the water that does the damage.
But as Jefro says, removing all power and drying it out first would have improved your chances.