I've never dealt with anything like that before, but honestly I can't say I would've done anything differently. I'd say maybe tomorrow give her a soak and try to see the extent of the damage. Stressful as it may be, I'd also take another look at the inside of her mouth. From my understanding, you took away the rat entirely, so she hasn't eaten. Correct? If so, I would wait until your next regular feeding day and hope she wasn't too badly affected by this incident.

But it sounds like you handled everything as quickly and well as you possibly could. Keep us posted on her status!