Hydrolocked my engine with dealer plates still on...

So here's my story. I was out playing around in puddles...really nothing big at all. On my way out I made one final run, a little water splashed on the hook and the engine died. I still have the dealer plates on her and they towed me, after my friends got me out of the water, to the dealership. I've read some of the threads and seen some people say that it was covered by Jeep for the repairs. I have a video of my final death run and it shows I was not exceeding the limits of "the most capable offroad vehicle". She's a stock JK Rubi and can climb anything I point her at...water seems to be an issue. I would love to hear any thoughts on this, what it could be, best wat to prevent it (what is the best snorkel?) and if anyone has had this happen and had it covered by warranty I'd really love to hear from you so I can have a little ammo when I go in to fight them.