so any luck? i know it's not a Jeep, but years ago i had a 74 Camaro and ran it down a street that was flooded. the car was going downhill and water was up to the firewall, with the headlights shining UNDER WATER! weird......
anyway, pushed the car up out of the water and after a couple hours, started the car and drove it home. never had a problem after that either.
UNFORTUNATELY todays cars (and Jeeps) are a little more sensitive and have A LOT MORE ELECTRONICS. i agree with the guy that said 'take it to the dealer and turn it into your insurance co'.