I would have left it in the mid 60s shed. No biggie either way, since most ferm. is done. I have a carboy full of blonde ale sitting on my front steps, which is insulated but not heated. Has ranged from 45-65*F active ferm was a week of steady 60* temps, then it kind of went up a tad, and now it is getting a little chilly, especially at night. I wont be moving it at all until bottling time.
I am expecting it to turn out very well... so I expect yours to as well (as long as all other brewing elements are in order!)