Poe mumbles an acknowledgment that sounds vaguely like Aye, sir as he strips the flight suit off completely and Finn leaves.

Naked, he wanders to the showers, turns one on as hot as it'll go, and leans against the wall, just letting the water run over him and drip from his hair. He does get that washed, at least, he's quick and efficient even if he's not moving his fastest. But then he just leans, since there's no point in getting out of the water until the clothes come back.