Ontario Highway Traffic Act

Hi All,
I got a ticket because of the violation of the hov lane. could you please give any suggestion on fighting the ticket?
here is the story:
I was on hwy 404 from Markham to Toronto. I was supposed to take the exit of hwy 401 west, but because i am not familiar with that area (I live in mississauga), i missed the exit to hwy 401 west (but i ...