ouch. dunno if insurance will cover it but if it does the dealer might be an option. if they dont.. well..
may be just everything is still wet, if you can wait I would just open the hood, disconnect the battery, pull the cover off the fuse box, pull all the fuses and let it dry out. for like a couple days. seriously.
might want to unplug any connectors that were under water and let them dry out also. you could spray around with WD 40 (Water Displacement formula 40).
it will probably cost big bucks for a dealer and all they will probably want to do is replace everything.
give it a couple days. modern electronics are fairly robust and once dry they may be OK as long as it wasnt salt water (that ditch wasnt the Atlantic was it?)
what may of happened is you got the data bus wet (shorted) and the various computers cant communicate with each other. once the bus is OK, you may be fine.
2000 Cherokee Sport 4.0L Selec Trac - mine - for occasional wheeling
2007 Patriot 2.4L FD I 4x4 - wifes - doomed to rarely leave the street