You cannot just rehome somebody else's dog! The family did what they were supposed to do and the rescue failed to do their duty which is helping dogs get back to their owners and finding STRAY dogs a home! Soda had a home and it's not in your place to rehome her! Link to the story is-- http://www.examiner.com/article/rescue-refuses-to-return-elderly-dog-to-owner 

here is the news coverage-- http://dfw.cbslocal.com/video/10580136-owner-rescue-group-in-doggie-adoption-dilemma/