Car runs fine, but electronics r haywire. What could it be?

What is your question?

It rained, and my car has a leak. It started fine, but the dash started doing weird stuff. The radio turns off randomly. Then it wont let me lock the car for a few minutes. Is it a fuse, or am I fucked?

What makes this problem better or worse?

gets better after it sits turned off

How long has your 2010 Mercedes-Benz C300 had this problem?

one day