No, he shouldn't have kicked his ass more. In fact, he shouldn't have done anything to him.
I dunno, he was already getting loved as it is. He should have done some cocky poses or something.
It was because of the save that they cheered him. Had he not done that, they would have still continued to boo the shit out of him.
Well, I don't know about spitting, but if he did something to piss me off, try to piss me off (flipped me off, ripped up my sign, almost hit me with his car or whatever), I'd take pride in it. That's bragging rights right there, I mean who else is gonna say "Hey, Matt Hardy ripped up my sign on TV. You gotta put a positive spin with something negative.