They will be fine. I have left mine out of water for 30mins and they are open within hours. I have dropped them 6ft on the floor and they open up in a day or so. Zoas are super ressilint.
They should be fine. Fw dipped some for about 20 minutes one day because I forgot about them and lemme tell ya, they looked ded dead. But a week later they came back fine. Only thing ive ever seen actually take out zoa is asterina starfish.