I did not read other messages but the blame should be on your neighbour. No responsible person leaves a dog, not to mention a puppy, loose and unattended outside. It was a disappearance or acciden waiting to happen.
I hope that someone just rescued the puppy into a better life and nothing bad happened to it (getting stuck somewhere, hurt or killed by accident, taken by bad people etc.).
I do not know the American police, but where I live, I think, the police would just shrug their shoulders (or try to help to look for the puppy for the sake of the puppy, if they are animal lovers). The 'object' was left unattended, and a (likely mixed-bred) puppy has so low value in money that they have no resources to look at it thoroughly if there are other crimes or tasks at hand. And it clearly is not in your possession either. In stead, here the owner might receive tickets for leaving the animal unattended and breaking leash laws.
I would see it differently if they asked you to look after the puppy and you would have ageed.
... And I read the last post and learn that this is a revived ghost... Well, my opinion is out there now...
I hope that someone just rescued the puppy into a better life and nothing bad happened to it (getting stuck somewhere, hurt or killed by accident, taken by bad people etc.).
I do not know the American police, but where I live, I think, the police would just shrug their shoulders (or try to help to look for the puppy for the sake of the puppy, if they are animal lovers). The 'object' was left unattended, and a (likely mixed-bred) puppy has so low value in money that they have no resources to look at it thoroughly if there are other crimes or tasks at hand. And it clearly is not in your possession either. In stead, here the owner might receive tickets for leaving the animal unattended and breaking leash laws.
I would see it differently if they asked you to look after the puppy and you would have ageed.
... And I read the last post and learn that this is a revived ghost... Well, my opinion is out there now...