Thanks for the advice from everyone. She messaged that after peeling herself off the ceiling and spending the rest of the night in bed, things look very normal.
She has been to the 'Land Down Under' a couple of times for other conferences and just totally enjoys the country and people. She did not rent a car this trip, she does not adjust to the steering position quickly enough to feel comfortable.
I may need to tag along on a future trip, never made it there yet.