I'd be pissed if someone was filming me too. Weirdos.
He's a friggen celebrity ffs, there is no need for him to react like that, in fact he says later:
Oh so your are not just a guy from around here?
So he must have thought they were locals...very bad behavior in my opinion, he should have said a friendly hello should have taken his gayass Starbucks coffee and walk the fuck off.
You can actually see he is so fucking close of loosing it completely when the Guy says Go Hit me first.
Maybe somebody in Starbucks didn't want to get up for him