Although I sympathize with you and would also have been infuriated by such behavior, it happens everywhere, also in the USA.
I was married to a woman who had serious psychiatric problems.
One evening on Kimsha beach, she tried to commit suicide by jumping into the sea. Some righteous bystander phone the cops because we were pinning her down to stop her doing it.
They turned up and immediately pulled their guns on us. Under Dutch law, to do so they have to be threatened
When they finally believed us, I asked them to take her to a secure psychiatrics place. They refused and left us there...
Many Dutch side cops are incompetent and corrupt. If they recover a stolen car, they use it for themselves before finally returning it to the owner.