Ontario Highway Traffic Act

Yep, I agree with that.
HTA, 7-1-C, "No person shall drive a motor vehicle on a "highway" unless, evidence of the current validation of the permit is affixed"

"highway" includes a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public ...

Yep, I agree with that.
HTA, 7-1-C, "No person shall drive a motor vehicle on a "highway" unless, evidence of the current validation of the permit is affixed"

"highway" includes a common and public highway, street, avenue, parkway, driveway, square, place, bridge, viaduct or trestle, any part of which is intended for or used by the general public ...

I guess in other words, if I had been driving with expired stickers and got a ticket, that's life. No big deal there.

But getting a traffic act ticket while not on a public road and while not vehicle doesn't sit well with me.

I completely agree with your second and third point. The only reason I didn't get back into my car was the officer was already walking over, but it was a non issue at that point.

It wasn't like the officer was behind me while I was driving. He didn't pull me over. I had been parked for a good few minutes, got my work stuff in order and starting ...

I have questions regarding a ticket I received this morning while in the parking lot at my work.

My stickers were in fact expired, and If I had been pulled over on public roads, there would be no question that I was in violation of the traffic act.

However, I was not pulled over and at the time of the ticket, I was parked at my work. While ...