My mother was known to the police as a vunerable adult after she too was targetted and robbed. This meant that any call to them was dealt with very quickly. The police also had the key safe number so they could gain access if necessary.
What would you do if this was your cat?
The Government advice re emergency packs
What household chore have you got completely wrong?
Were you more emotionally attached to one parent over the other ?

Do you still go out and leave him alone?
Well done though for setting up a priority and password system. I know it's an extra bit of faffing about but worth it for peace of mind 