They then immediately escalated to pepper spraying him, except they screwed up and got themselves instead (which enraged them). They also Tazered him and scared him badly enough he stopped attempting to comply and instead ran for his life.
I haven’t watched the videos, but from commentary I understand he repeatedly tries to de-escalate the situation and is bewildered at how angry the cops are at him. Police department has subsequently said there wasn’t even a valid reason to pull him over.