There is no legal path available to you to come to the aid of your father without endangering the careers of the officers who take the call. I wouldn't wait for the police to open the door if I were you
Unwarranted sarcasm aside that is good advice. A POLICE OFFICER CANNOT ENTER YOUR HOME WITHOUT A WARRANT OR YOUR PERMISSION.
The legal path is busting a window or kicking the door in because you have at least implied consent to enter the residence. THE COPPER DOESN'T