Whilst I think the moon and the sun align their views more often than we do, you are kind of right.
If you haven't got the time the pet deserves, get a fish tank, what with a decent filtration system, and a high quality timer feeder, It takes about 3 hours of my time a month, and they are unlikely to escape.
Someone here went to confront someone who had by actions of your mother felt agreved. You go round un-invited to make things worse, and they escalate it further. What did you expect to happen?
That said, if it was me I'd have probably said see you in court, looked into deformation of character, bribing the police to charge them with wasting time.....
anything but apologise