FWIW, the cool temps sparked the deers at our place yesterday too. My son watched a nice buck yesterday AM jogging around looking rutty. He is a buck on the hit list for us this year, but probably option #3. Between that and the fact that he kept moving so much, my son passed him at 34 yards.
He and his friend hunted that evening (Sunday) too and had good movement, including a couple/three bucks. Nothing crazy or too chasey, but clearly the local herd was more visible than they had been. It's starting to shift and tomorrow's temp drop should rile them up something fierce IMO.