No, I have nothing in terms of my personal memory about his short time in the CFL but I really liked his time on TV as the Incredible Hulk. Found this on the web:
At first he tried football and was recruited by the CFL. "My father wanted me to play football and though I'm a fan of football, I didn't want to play. I tried out for the New York Jets and they said I needed experience, so they flew me to Toronto to play Canadian football. I played offensive linebacker, right of centre. I remember I went to the coach, I said to him, 'I don't like hitting people.' He said, 'Hey son, go back to bodybuilding, be a champion again.' So I took his advice. I stayed there for like a month -- but it was a very highly skillful game, so was happy to come back with no major injury."
Apparently Lou "Incredible Hulk" Ferrigno did play 2 pre-season games for the Argos before being released, as far as I can tell he never played a regular season game though. I'm not sure exactly the time frame but I think it was in the mid 70's maybe "74"or "75" ?
Here is a gem I found though , it's indeed Lou Ferrigno at either T.Camp or at a regular practice with the Argos.Judging by the short shorts I'd say that it had to be the 70's. 8)