The other answers are relevant... ''the situation has no effect on changing the final outcome.''
'''Yes you should have waited longer.''' . . No power (pull the battery immediately) 72 hrs in a desiccant would be a good dry there was probably still water under components then the board would have to be cleaned..
''Don't kick yourself too hard...'' most people don't realize how long it takes for water to just evaporate '''the single most common problem are impatient people who power up a wet unit too soon''', or without really trying to do much to dry it much at all. BTW just drying a board will not fix blown (shorted) components.
Powering it up could have done more damage... only by examining it closely with a magnifier can you see corrosion, burned or swollen components. ''Go back over the other water damage answers there's good advice there.''
You may be able to replace the logic board... but you could still need a display or other parts.
''If this answer is acceptable '''please remember to return and mark it'''.''