As a result, a post-trial gag order is going to be exceptionally hard to justify because of 1st Amendment grounds.
Nebraska Press v. Stuart (1976) overturned a judge's gag order against the press. The entire point of a gag order or "protective order" is to protect the 6th Amendment rights of the defendant. The Supreme Court and Appeals Courts are clear in this regard.
The point is, this girl should take this case to Federal Appeals Court -- she'd win because the judge has no Constitutional leg to stand on, especially since this is post trial/conviction. She should have a right to speak about her experiences wherever and to whomever she pleases. Her right to speak cannot be infringed if there is no underlying Constitutional conflict (i.e. right to a fair trial, etc.)