Should wasps keep coming back to a sprayed nest.?

My apartment maintenance just sprayed some nests outside/ inside my wall ac unit yesterday around two or three. The reason why they are spraying in the afternoon is because they office closes at 5 so they have to do it before the office closes. heard a wasp a couple hours after they had sprayed. Should I have... show more My apartment maintenance just sprayed some nests outside/ inside my wall ac unit yesterday around two or three. The reason why they are spraying in the afternoon is because they office closes at 5 so they have to do it before the office closes.

heard a wasp a couple hours after they had sprayed. Should I have them spray one more time just in case they did not kill all of the wasps?
Update: Update: We do live in a third floor apartment so its not easy to access the nests.
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