I found myself in the situation that I had to leave the darkroom before I had fully washed some prints. I could only make it back in about 12 hours.
Option A). Leave prints soaking in the washer (vertical slot washer)
Option B). After a brief soak, pull prints and put them on the drying rack (yes, I'll clean those screens!) and then do a full wash about 12 hours later.
So which do you choose and why? Not sure I want to admit which I chose quite yet