I suspect Chris is a little frustrated because he didn't have a Very Merry Christmas after all.
Most of what I have to say ITT has already been said.
@Chandler Cats is 100% correct in that Chris could be up for violating probation, trespassing with intent, destruction of property, carrying concealed, brandishing, at least second degree assault with a weapon, criminal flight, and probably a bunch of other things nobody has yet thought of (but a good district attorney most definitely will). Also
@MrsFrizzle is 100% correct that Gamestop may well press charges on behalf of their employee just to duck any liability they might have for their employee from this incident.
If the powers that be want to bone Chris, then Chris is royally boned. Somehow I suspect that once again Chris' inexplicable luck will hold true and he will get off lightly for being more trouble than he is worth. Of course the longer he does stupid things like this, the more likely it is that he won't be lucky. Roll the dice enough times and eventually you'll get snake eyes, and Chris just won't stop rolling those dice. This may actually be that time.
Not to turn this into another "when Barb dies" thread, but does anyone still think Chris will manage just fine all on his own without a handler once Barb is gone? Look at the trouble he makes for himself with Barb still above ground.
Unless I'm mistaken, there's nothing but silence coming from Chris himself. There are a number of possible reasons for that, better or worse, but the longer the silence continues, the worse his outlook becomes.
I'm pretty sure that was some variation of mace or pepper spray, but Chris hit the employee in the stomach, not the face where it would be most effective. Also, knowing Chris as we do, I would not be surprised if it was dollar store pepper spray, which is probably significantly less effective than the real thing.
Finally I've seen attempts to cosplay Classic Chris at various cons. I wonder if anyone will have the guts to cosplay Sassy Vandal Tomgirl Chris?