Relocating most wildlife is illegal here, and honestly, it's not a great idea anywhere. Many wild animals will travel back "home" unless you move them many, many miles. They carry diseases as well. Coons are the top rabies carrier in my state. They carry fleas and ticks.
I think drowning is awful, particularly with my veterinary training...but...obviously I can't wait until morning to have DNR come take it. Once caught, this coon has to be promptly removed since he knows how to escape traps and is already known to kill poultry. That pretty much leaves that as my only option. we have a 150 gallon trough or a 90 gallon trash can. Creek is too shallow and at the bottom of a hill I don't fancy carrying a heavy trap with an enraged wild animal in down through the trees. I thought about dry ice or vinegar/baking soda, but the volume needed is quite large to fill a trash bag large enough to fit the trap, if its claws don't tear the plastic. And I don't have a way to store dry ice for several nights until I catch it again.
I am vaccinated for rabies, so I'm relatively safe for that, and I have handled many wild animals in my career
I am not fussed about handling the trap with a critter inside. I'm more fussed about the monster escaping again! Bought a new trap with a different system, and I am looking into having the trap I have repaired; it has a lwarranty, apparently. It did something to the trap pan, so you can't set it again, when it managed to escape.