Just found this online... It only took them a half hour to return back to the Mother Hive after the queen was in the Nuc ( I hope...pretty darn sure but I still hope she is!)
" If the hived swarm is removed as soon as it is hived, there will likely be several hundred bees lost and will hang around the area for a day or so looking for the swarm. If this happens, the lost bees will return to the hive they originally came from within a few days unless the queen (or a queen) was left behind. If that happens the remaining bees will cluster again somewhere with the “left behind” queen. These clusters are generally small."