Ontario Highway Traffic Act

I live in Ottawa, Ontario (Canada).
I got slapped with a ticket of $45 for violationing a Bylaw when I parked on a street infront of my doctors office.

I parked within 3 M of a point on the curb or edge of roadway opposite a fire hydrant.

Here's the details:
I find a parking sign on the road that says NO PARKING < , which means that I can park to ...