Nothing in this is a big deal, but the "no contact with his mouth" thing is just weird for so many reasons.
I just can't really imagine the purpose of such a request. Maybe the hipster is a a germaphobe or worried about the dog biting, but none of that makes sense when he brought the dog to a bar.
Honestly, it sounds like you might have been more drunk than you are letting on.
I say that because I can't think of any other reason he might be worried that you would nose dive in for a kiss. That's pretty rare for a stranger to do, and almost no one would besides a kid or a really drunk person.
And unless it misinterpreted the telling, you did dive in close enough that you thought it might happen and he thought it did.
So, only conclusion is hipster is a goober and maybe you were a little drunker than you let on. And he doesn't understand what a good drunk you are.