Regarding the splash of water from your rear passenger door. Can you look at the underside of the door and check the seal and compare with your other rear passenger door? I had the same issue after rain or a home wash. It turned out the seal was not properly installed - it's adhesive in that part of the door - and it'll retain water instead of letting it flow out as it is supposed to. Tesla service confirmed the water retention and seal installation failure, and replaced the seal. It's been golden ever since. Good luck!
GC, I did check all the seals around the doors but didn't think to check the bottom portion, I'll try and compare the bottoms.
What do you all suggest I do as far as Tesla service?? I am afraid they are going ask me how they are supposed to replicate the issues I described when going through a touchless car wash.