Well, you've crashed it. Couple this lady's attitude with some real driving skills and you've got yourself a WRC champion. The only explanation I can come up with, is that she had a bit of crashing training beforehand. She's done this already. There's no biggie.
Here's a pointer... "if it's wet, go easy on the wheel, and the throttle. We'll talk about snow and ice next week".
Anyway, that's the perfect attitude! Calm and assertive. To go even further, although it's not the case here, get out, make sure you're OK, and then go give the best help you can give to the occupants. Don't worry about the ambulance. Other motorists will call it for you. Unless you are in an extremely remote location, that is...