I believe the best thing for Wayne to do would be to wait until he is done with his shift.
Explanation:
In the question, it is said that Wayne is working his midnight shift and that he didn't see any customers coming. Technically, he isn't on break so he shouldn't be on his mobile device. The email may be important, but it can wait.
In the 'Pandora's box', Haphaestus asks the goddesses to give Pandora a gift or a power. In other words he told them to give Pandora some of their powers.
