>>
Not Kris Sign<<
In the PITW universe, most Packs we know of are of the "You raised it, you sit on it" persuasion: they wouldn't risk their own 'Packies' with some other Packs' problem. So that way, Sarah has a measure of safety, and her own pack doesn't think they
can kill her: she's too big and strong.
Since she's already run down the street starkers; and all people saw was a big Cougar, she has the safety of "Eyewitness usually don't see squat, even though they were there."
Mentally, Sarah is pretty much a pup or cub mind-wise, when she's all fuzzy and toothy, so there is less of a risk than would seem to be; provided she doesn't get
frightened.
And..if she were found out..nobody would be looking for normal sized Were's- they'd be looking for giants with enormous "personalities".
All the better for camouflage.