Should I have punched this guy in the mouth?

[Villainaire]

Earlier tonight I stopped at the grocery store like I do a couple times a week to buy some Naked juice. I usually buy 2 bottles, AND NOTHING MORE. I use the automated checkout line, and I estimate that it takes NO MORE than 3 minutes to get back outside of the store from the time I enter.

With that said, whenever I do this I don't park in a parking spot, but I park in the fire lane and usually turn my hazard lights on unless there's a parking spot extremely close to the entrance.

So I parked in the fire lane... went in bought the drinks in about 2 minutes, and when I came out there was an employee climbing into my car. Just before he put his last leg in my car and shut the door I said "hey!" He didn't close the door, but hopped out and looked kinda scared.

He switched his demeanor ASAP and said "You CAN'T park here." I said "Sorry bout that, I'm leaving".

Up until this point I hadn't mentioned him getting in my car, nor did I plan to.

HIM: (as I'm getting in my car and starting it) Hurry up and just go.

ME: Dude, chill I could've left quicker if you weren't in my car when I came out [censored].

HIM: What'd you say?

ME: Why the [censored] were you getting in my car when I came out?

HIM: To teach you a lesson

ME: You're [censored] stupid, go bag groceries. (I was pissed at this point, but nowhere near mad enough to fight, I just wanted to piss him off more)

HIM: Next time you park there I'm calling the police

ME: Riiiiight...

(He was getting pissed, and if someone was watching they would've assumed we we're about to fight, but for some reason I wasn't super pissed.)

ME: Look dude, I'm leaving, it's no big deal, just chill the [censored] out and leave me alone.

I drove off and I was checking for him in the rear view and he was just standing there until I got back on the main road (like 250 feet away from the entrance).

I'm not mad at all, but I told both of my female roommates and they said they'd have beat his ass.

The guy was probably like 27-33 years old, and I'm guessing he saw me get out of my car when I came because I doubt he would've done that to an elderly person, female, or anyone over 30.

I will inevitably park in the same spot sometime in the near future, and I'm sure he'll wanna feel tough and confront me again.