OMG!!! People like this makes good deeds turn into BAD deeds!!! I understand that she REALLY wants her dog back, but the way she handled it IS ABSOLUTELY UNACCEPTABLE! I doubt that it will be her dog. However, DO HAVE HER PAY FOR THE VET VISIT if you go because you DO NOT have to do it! Did you tell the cop that? This lady sounds UNREASONABLE! I feel bad for her actual dog and hope that he has found a better home. In the end, you did the RIGHT thing and don't let this psycho discourage you from doing the same thing in the future. Unfortunately, one person usually ruins it all for others
GOOD LUCK!