Just continue as normal and hope it wasn't too stressful for them. You don't really have any other choice, further tinkering with the schedule will only cause more stress. Is it a stable strain? I've had some sensi skunk#1 go dark for 2 days (oops) and I literally just replaced the fuse and set it away again and they were fine. I seen my friend go in his tent after lights out to take 1 photograph, and a week later they started to herm. Some strains are head and shoulders above the rest in terms of coping with various stresses