Are you from DC? I would say that if they seem to be recovering ok you should be fine. A hormonal response would have been triggered in the flowering plants to direct all energy to the flowers for seed production to continue the survival of the species. Watch out for hermies. That would be my biggest concern. I'm not 100% sure, but they should resume their normal flower cycle. I've had flowering plants in the dark for 2 days with no reprocussions. As for your vegging plants, they will be fine as long as they survived the outage. Their flowering cycle obviously won't be affected as it hasn't begun yet.
Hope all goes well for you! Good Luck!
