Shaw had crashed down a bank near Matawai and had been there since, she said.
He was found just after 4pm.
Shaw suffered some injuries "but is okay" and was conscious when discovered by rescuers, the spokeswoman said.
It is understood Shaw's family is now en route to reunite with him.
A helicopter has been dispatched to the scene to transport Shaw to hospital.
SH2 will be closed between Cemetery Rd and Rakauroa Rd to allow the helicopter to land.
"Police would like to thank all those who assisted with our enquiries and got in touch with information during the search for the man."