Personnel assigned to such policing duties shall be classified in their duties in the same manner and in the same or similar work in the Kansas highway patrol organization and shall be so paid. All persons so assigned shall be deemed members of the state highway patrol and of the retirement and pension system of the state highway patrol and shall be subject to the provisions of article 20b of chapter 74 [*] of the Kansas Statutes Annotated and any acts amendatory thereof or supplemental thereto except that the Kansas turnpike authority shall make the necessary contributions for such pension and retirement system for the members who serve in behalf of the Kansas turnpike authority as would otherwise be required of the state of Kansas. Personnel of the state highway patrol assigned to police toll or turnpike facilities under the authority of this act shall not be considered in applying the provisions of any other law of this state limiting the number of the personnel of the state highway patrol but the personnel so assigned shall be in addition to the number of members of the state highway patrol as limited by other laws. If personnel assigned to any toll or turnpike facility is uniformed, such uniforms shall be identical to uniforms provided Kansas highway patrol personnel and their vehicles shall be marked, if marked, in the identical manner as Kansas highway patrol vehicles: Provided, Such uniforms and markings [vehicles] shall be so marked, in addition, to indicate Kansas turnpike authority assignment.