(a) The provisions of this chapter relating to the operation of motor vehicles apply to operation upon public highways only, except where a different place is specifically referred to.

(b) On duty enforcement officers are exempt from the speed limits established in accordance with sections 1003 and 1007 of this title, and fixed by section 1081 of this title. (Added 1971, No. 258 (Adj. Sess.), § 3, eff. March 1, 1973.)