After yelling at DH on the phone (I later apologized), I found all the appropriate parts, but no user manual (not even online). AFter a call to my dad and a couple of youtube videos, I got the rest of the water out.
The washer motor is probably shot, so I had to drain it the old fashioned way, sadly. Thank goodness it's the spare.
Fingers crossed for a drama-free rest of the week while H is away!