It also depends on the hospital. I was admitted to a day centre for monitoring when my waters broke 6 days post EDD (I wasn't having contractions). I was discharged 5 hours later.
However, a friend of mine gave birth in a major public hospital in Melbourne and was admitted to a kind of day centre until she was ready to push. I had to take my DD to emergency at that same hospital when she was 10 days old and overheard a woman who was in the emergency room labouring until she was ready to push and was then transfered to the delivery room... so, I guess it depends on the hospital.

Good on you for looking out for her whilst still respecting her wishes!

MG