If she was a surrender to the pound anyone could have just gone straight to the pound and adopted her, there is no need to go through DID as she was not in their care yet...
This is not the case (and has been a regular source of complaint to the city council). You have to go through DID on *all* or nearly all dogs (it seems arbitrary when they occasionally home a dog themselves) and pay DID homing fees rather than pound fees. They refused to release this dog to anyone but someone with DID. This has been the case for a very long time. Someone applying *to the pound* for the 10 year old deaf dog that was surrendered and sat in the pound for a week, was refused the dog-- DID apparently make the decisions.