I personally would remove all cover plates, but either way I'm sure will be fine, as rice absorbs moisture, I'd say a few days to be safe, as some leave it for a week, but if you just dipped it in the water for a second, it might not be completely drenched, but rather wet spots here and there, I can't tell you that, but I will say the longer the better. But ultimately up to you.
Maybe take it out now and then run a blow dryer lightly over it a few times, then back in the rice, might help speed up the process, by introducing dry air to hard to reach places.
Let us know how it goes! And keeping fingers crossed for you Bro!
Good luck!
J Dot
Take care, Fly safe!