My phone got some splash water. Unfortunately some water drops landed in the usb charging port. The phone gave me the error message that it detected moisture and i should dry it.
At some point the phone died because of low battery. I did not have charged it yet because of the concernings that the water and charging could damage the phone.
UPDATE: i used paper towels and let it dry overnight. I charged and there was no warnings.
I’ve been to a big water park today, and made a couple underwater pics and vids. Of course I got the “water in usb port” message. Put the phone away (no drying whatsoever), and when I used it again a couple of hours later, I got the message that it was ok to use again. So, I’d guess no worries for you, just try to charge and your phone will check if it’s okay yet.