Engine cuts out when i shift out of park

While driving home Saturday night about a half mile to three quarter miles
from my house my tachometer started bouncing up and down. Then the
headlights started flickering. I also heard a weird noise coming from my
car. I cant describe the noise very well, it was just audibly different than
normal.

I than got into my driveway and when i shifted it into park the engine cutoff.
I started the car back up with no problems but when i'd shift out of park the
engine would cut out again. I tried it again Sunday morning and same
thing. I could let it idle for any amount of time and there is no issue. I also
tried it again this morning and i could shift it a few times but it would cut out
eventually.

Possible coincidence but we had a wicked downpour Saturday night and I
hit a decent size pool of water on the road a few hours before i got
home(drove it probably 20 minutes or so after that to get to my friends
house and was driving back when the issues occurred).

Automatic Transmission 225k miles