Silly bees, they didn't read the book!! How DO they know what they are doing??? ;)
If its an observation hive, then don't try messing with any queen cells. You may end up with a slightly runty emergency queen, but keep in mind that she only has to lay up between 2 and 5 frames depending on your obs. hive, versus a full size hive which has 20 frames.
I've an emergency queen in mine and she does great and is going on year 3.
Relax and enjoy the show!!!