Was The Tappan Zee Bridge Video Green Screened?

The person who uploaded the video of three teens breaking onto the Tappan Zee Bridge claims he made it using a green screen, so we tested the theory.  

A video was uploaded to Youtube on July 13 showing three teens breaking onto the new Tappan Zee Bridge.

The video shows the teens going through a hole in a fence, and using a series of ladders to make their way to the top.

The teens have since been arrested and charged with Criminal Trespass.

In the comments on the Youtube video, "Jeppy", who uploaded the clip commented:

I hope you know I'm a filmmaker? and clearly I have a green screen wall behind me in the intro? I didnt actually go on the bridge I just edited myself on it using my green screen

Well, luckily we have a green screen here at the radio station. See if you can spot any differences between our video and theirs.