Sounds like a VCM issue. I had 2 in the last 2 weeks that just went nuts. One was simple wake up signal as @PowerSource
said. That will typically knock out the touch screen, instrument cluster, and Gearshift buttons will all be out. Typically reflashing the VCM fixes it but on occasion requires new hardware. In your case as it is intermittent and appears water related I would advise checking the drivers side under the dash and floor area for wetness. The VCM is located in the upper front corner of the dash at the firewall. Your reference to the water ingress fix being done is passenger side and wets the CIU. You may be getting water into the drivers side via windshield or a clogged cowl drain. Feel around that floor first and peek around under the dash on that side with a bright flashlight (will reflect off of water droplets).