Sergeant Steve Aitken, of Dunedin, said the driver had ''disappeared'' by the time police arrived.
The man was transported to Dunedin Hospital by police as no ambulance was available at the time, Sgt Aitken said.
''We still need to locate the owner of the vehicle so we can have a chat with [her]. If anybody did witness [the hit-and-run], we would certainly be keen to talk to them.''
Anyone with information was asked to contact Dunedin police on (03) 471-4800(03) 471-4800, or anonymously via Crimestoppers on 0800 555-1110800 555-111.