Typically, a werewolf in full Crinos versus a bunch of unarmed - and dead, no less - is less a fight and more of a lawnmower vs. grass situation, but these particular dead, unarmed humans prove to be much more resilient than expected. And, if anything, they are only getting more so.
Though rational thought is always hard in Crinos, it does occur to her that when these screamng little pests seem to spontaneously develop much thicker skulls than any human should have that something is wrong. They're not fomori, no matter how bad they taste (dear Snow: stop biting the rotting things, they could make you sick), but they're not just 'regular' zombies either.
So, after tearing those biting her off as much as she can, she howls (p.s. stop making noise, even if it's a call for help) and shifts down to lupus, which is small and fast enough to elude the grasping zombies and bolt towards the fire escape. She's not a Fenrir, to stand around and fight them all day; she needs to heal, she's bleeding too much for comfort, and she has no idea what's going on.