She needs to have the book thrown at her. Too often as an EMT you're dodging traffic and trying to get into wrecked cars at teh same time. Folks get away with crap on these scenes all the time, since the cops are already tied up.
Vehicular manslaughter, failure to yield, failure to obey the "move over law," etc. Get everything possible on her, let the media play it up, maybe save someone elses life.