<human>: I go to a university that has decided that they would rather have more residence halls than parking. Needless to say, this has caused a lot of problems in finding a parking spot for when I commute to class. Usually I ride a bike, but today was extremely cold and I didn't feel like riding in the biting wind. Here's where my story begins:

As I pull into the parking lot, I see a car backing out of a spot. Awesome. It's not every day that I get this lucky. Well lo and behold, there's not just one, but TWO empty parking spots right next to each other. As I drive forward, I see another car coming in from the opposite side. No problem, I think, there's two empty spots, one for me and one for him. Well being the nice guy that I am, I decided to let them go first. Here's where I fucked up. This guy whips in with his Mercedes and decides to park diagonally ACROSS the two parking spots. He gets out, smiles at me, and flips me off. Well fuck this guy. 

Fortunately for me, I drive a truck with a really long bed on it. As he walks off, I pull in and back up to where he's blocked in by me. Of course I'm sticking out into the drive a little bit, but that's okay. As I begin to get out of my truck, I remembered that I have window paint in my glove compartment. Why not put it to good use, right? I get out of my truck, go over to his car, and begin my revenge. I colored in all both of his side mirrors, and completely covered his back window in green window paint. So not only is he now blocked in, but now he can't even see out of his windows or mirrors to back up.

Oh, and did I mention that I will be parked there for the rest of the day since I have classes that go until late at night? Hope you like being stuck there for the rest of the day, asshole.

Summarize the given text in a few sentences.
<bot>: Guy parks diagonally across 2 spots, I block him in and color in his mirrors and back window with window paint.