I read it as a rebuke to a generalized statement that you characterized as US-centric, hence implying that outside of the US the police are your friends. You also said "they do generally want to help" which is a rather explicit generalization.
If you just meant to say that the police are your personal friends, that's fine I guess, but the comment you replied to didn't really rule that out in the first place.
"I would have zero problem". "Based on my interactions". "I would describe them".
That's the phrasing I used, very specifically and on purpose in fact. Is that a problem?