When working in a local community darkroom, I have used blotter books to transport and dry prints without issue. Those prints were well washed with excess water removed. It could have been that I was lucky or unknowingly found the right amount of dampness to transport the brand of paper I used. In this case, the prints will not be effectively washed and will be washed after removal from whatever device is used to transport them. As they will already have fixer in them, a little more should cause no issue.