It makes me kinda sad that if this were to happen in my country (Peru), the police wouldn't do anything under the pretext that the suspect hasn't actually done anything.
And acknowledging something does not make it a rule. People who drink and drive do cause more accidents. But not every drunk person will cause an accident.
He was driving a considerable distance, on repeated occasions, while concealing his appearance, to harass someone. That’s not “snowflake” ethics - it’s wrong, full stop
It doesn’t matter how he chose to harass them, or whether the level of property damage was beyond a line you consider unacceptable.