She can leave any time. Familiar surroundings might actually be best for her.
The thing to watch is that she's living off her reserves. She'll sleep a lot the next few days. Then, when she's rebuilt enough blood for digestion, you're going to have one very hungry wolf on your hands.
So what you're saying is that in two or three days, I'm going to have a highly intelligent, fast moving, starving, carnivorous alien life form on my ship.
Yep. Wolves are also most active at dawn and dusk, so this will probably happen while you're asleep.