Gee! Here's the relevant facts:
* He was charging his absurdly-short-ranged-and-expensive electric toy using a publicly provided facility on public property;
* He was doing the charging outside of posted hours (curfews in parks are common; the curfew for the park across the street for me is 1/2 hour after sunset);
* He refused multiple requests/instructions to comply with the curfew by leaving;
* He refused the minimal cooperation of showing his ID when asked to do so.
Though not mentioned in the article, I suspect he was also bluing the air with his foul language.
Disregarding my speculation about the language the dude used, had this older white dude been as triply stupid as he was, my "white" tail would have been arrested, too! And the rest of me as well!