After you mentioned this TGY, I went for a drive in my Google Mobile and took some pics. It is indeed a camera outside of the Coles entrance. I would never have picked it unless you mentioned it. The images below are from Google Maps and they are dated 2009, so the cameras were definitely there when Allison was reported missing two years ago.
Click images to enlarge.
The first pic below is a view of the roundabout at the intersection of Brookfield Road and Moggill Road at Kenmore. I've noted the cameras on this image for anyone not familiar with the area and also for new members who will hopefully get a better understanding of what we're talking about when we mention the roundabout. I've also numbered the two most prominent bus shelters in this image. No. 1 outside Coles and No. 2 on the opposite side of the roundabout. There is also another bus shelter in Cedarleigh Drive, as indicated by the little blue bus icon on the far right of the image. Ironically this bus shelter is opposite the Kenmore Fire Station building and I'm wondering if there is also a CCTV camera installed there. Could NBC have been sitting in this bus shelter?
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Below is a screencap of the camera near the entrance to Coles. You could be forgiven for thinking that it was a street light until you compare it to the street light behind it. And on the far right of the image is bus shelter No. 1 as noted on the first image above.
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A closer view. It's definitely a camera.
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Below is a full view of both cameras in relation to bus shelter No. 2.
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Another view of bus shelter No. 2. Heading this way along Moggill Road will take you out to where Allison was found.
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This is brilliant thanks Makara! Just one thing though - I always thought the "camera" in the middle of the roundabout was a cluster of street lights - is this definitely a camera? Fascinating if so.