problems from car being flooded... Options

[Sebotage]

so yeah, incase you didnt see my other thread, my car was in a flood the other day. In the midst of it, the horn, turn signals, sidemarkers, and 2 tail lights came on. well two days later and they still dont wanna turn off, I had to pull the horn fuse so that i could drive home and now i got the battery unplugged so the car doesnt die

is it possible that this might have something to do with the "toyota security" box under my seat? it was sitting in a couple of inches of water when i got to the car back




ALSO, my car is idling at around 300rpm, my drive home from from the house where it got flooded took about 1 hour since my car kept choking up and dieing, and at the same time water would start flowing out of the tail pipe



any and all help will be muchly appreciated, thx guys...