You should have just got a dude who had a golf cart that day to let a friend sit in and roll past you as you thwacked. Just have him drive at a slow pace with no herky jerkyness and you can get it pretty steady. Especially with a monopod or something. I've used the back of a pickup truck with sponges taped to the bottom of a tripod as a dolly before, so it can be utilized well.
Yeah, if you had more shots of the computer, maybe an over-the-shoulder shot and perhaps a reverse medium closeup shot of the computer screen reflecting back on your face, that would have been the dopeness.
Overall though, I love the concept
Have a nice day, Bluename.
NS 4 Legged Hit Squad: Gato. Panda. Dingo.