She might have, but it would have just been unsporting against one who cannot defend himself.
As for finding Harriet, there is the issue of that collar secured around her neck. I do believe I mentioned that it used the same type of enchantment as the one implanted in Galsek in order to allow Meesei's activation command to be transferred over a distance. Of course the ring that could be used to track it is currently buried in the snow with the rest of the warband's equipment. If Harriet is still alive, there are three conditions that would activate the collar: Meesei retrieving the corresponding ring and speaking the activation word, Harriet or someone around her accidentally speaking the activation word (which isn't terribly likely), or attempted removal of the collar.