And I am assuming that it would be a huge PITA to move the rocks?
If you aren't going anywhere ( out of town or what not ) I would be willing to see what the clean up crew does. But, I would test the ammonia twice a day -- once in the morning and once at night -- and be ready to move the rocks and do a water change if you do get an ammonia reading.
I know that leaving it is a risk, but I also know the pain of moving rocks, especially if you like the way your rocks are laid out.