New queen for the East

I was able to secure a queen on Monday morning. I took her out to the farm, took the honey super off, hung her cage with two attendants between one of the 10 frames, after I took one out to provide room. To help with acceptance I smeared a little bit of honey on the outside.
On the whole the hive was not particularly feisty yet I could not find any larva in it. Did that mean that there had been a young mated queen that just did not have a chance to start laying? Not sure.
I set the honey super in the shade and proceeded to check each frame to see if it would be worthy to be extracted.
I had had a queen excluder between the brood box and the honey super to ensure that no eggs were laid in the honey super. Some of the honey frames were capped some or not. I was able to take four frames pretty much totally capped back to the house. The remaining six had some nectar in them and a surprise.
Along the bottom of one of the frames in a very small area, a dozen cells with uncapped larvae curled in the bottom.
The hypothesis: not a laying worker, but a skinny mated Queen had managed to get through the excluder or at least get her rump to the excluder and was laying eggs in that bottom row.
Of course, none of this came to me until after I had left the farm. I had put that frame back into the super. The next day I returned for empty frames with plasti cell foundation for the super so they wouldn't start making burr comb.
I will go out on Friday to make sure the queen has been released.
Update: which idiot failed to remove cap on candy so workers could eat it open? Found her still trapped, released her, dropping cage once, should be OK. Will wait will one week go by to check -- May 18.