After a hive is destroyed will there be a few bees from that hive still hanging around and if so for how long?

Yes, there will be some hanging around ... any foraging bee that was flying gathering pollen and nectar at the time the hive was destroyed, will make their way back to where the hive entrance was sited to bring back their food for the colony. They stick around for at least a day or two, but they cannot start a new colony without a queen bee.