He's seriously going to kill either himself or someone else soon.
The description of this video says the driver is street racing, but don't be fooled. This guy is just a flat-out mad man who is racing his own ego. Said mad man's weapon of mass destruction is a 350Z. If this video was being shot as part of a chase film then it would be badass. It's not, though, and instead of looking cool this driver comes off as insane. Who else would weave in and out of traffic, reducing speed only to downshift and find a new hole to hit?
There's a time and a place for doing cool stuff on the highway, and it's not when said highway is jam-packed with cars. Hopefully this guy cools off before he wrecks himself or someone else.