Okla. Stat. tit. 70, § 70-1210.35: Penalty - Unauthorized use

It shall be unlawful for any person to operate a motor vehicle

bearing a "Driver Education Training" tag or "Private Driver

Education Training" tag as provided for in Section 1210.34 of this

title on any street, road or highway in this state for any purpose

other than instructing pupils or used in the instruction of teachers

in driver education and training; and upon conviction therefor such

person shall be punished by a fine of not more than Fifty Dollars

($50.00). Use of a driver education motor vehicle in a manner

unauthorized herein shall create no liability of any kind upon a

school district or institution of higher learning.