my bad, then. I had thought Tamara had left the station, thus leaving August to petrify alone.
(i like your theory)

I would venture to suspect that Snow's prided herself on never resorting to trickery. (aside from twice that time she captured Regina and was about to kill Regina)

just a theory. {and I didn't read your comment as bashing Snow, just disappointment in a scene when compared to the character's accomplishments}