Poor lass - I also hope she is OK.
As with the SUV-er and similar minded people I always carry at least one High-vis jacket in my car for any emergency (and the others). I'd have donned it and walked in the middle of the road with a warning triangle in my arms and 'directed' them to go somewhere else.
This might JUST have gotten their attention (from all accounts) - if not they could be driving away with a warning triangle in a window of my choice.
Also as with busses all they mainly do once off the beaten track is call in with a code 9 (emergency and to both I think) and relay X road is unavailable and please advise other drivers (and possibly help what do I do now?)