OSS did NOT work !

I had OSS on my boarding pass from YYZ to YVR after connecting with TSA Approved on my DCA - YYZ flight. (Tue Aug 23 2016)

I asked a number of people at YYZ and they told me that if the premier of Ontario has to go through screening at YYZ then I would not be an exception. In their words; No one is exempt from a security check regardless of what it says on their boarding card.

Does the Canadian Govt not inform security at major airports of their initiatives?

Interested in hearing from other on this.