Wow Sus I had the exact same experiance at Osbourne park when I had Shelby. We got there at midnight with contractions 3 mins apart (didn't want to see me before then) got told to go home as only 2 cm dilated and to take some panadol! I refused and got left in the observation room with a hot pack, 4 hours later they came in because I was making "too much noise" when they finally checked me I was fully dilated, they then made me walk to the delivery room.
After having Shelby I was allowed a shower then got moved to a private room (but they knew I was a nurse, so they felt obligated to give me one) but it was still horrible.

I advise you to go to King Edward if you want a private room, all their rooms are single but they do kick you out after 24 hours because they are just so busy. Their antenatal clinic is also a nightmare, we had a 6 hour wait last week so have decided to go to swan districts.