A 31-year-old man is also in a serious but stable condition after being stabbed before 8pm last night.
Law student Kelly Phillips has accused the university of cashing in on staff and students' parking fees.
The festival decided to ban moko after complaints about incorrect use, but it has left some in the school community upset.
The National Party MP rejects many of the claims the firm has made and told RNZ's Morning Report he was not angry or ranting during the call.
The organiser of the event on Saturday has asked people attending in future not to touch police vehicles, and says issues around rubbish will also be addressed.
Footage posted online from the event show crowds of people numbering in the hundreds, with many drivers taking turns to do burnouts and skids.
Canterbury Police released two images of man in the restaurant at the intersection of Shirley and Hills Roads.