You should know, in case you were actually considering it, that without G8/G20 accreditation, the deadline of which was a week or so ago, there won't be any access from the safe side of the fence. Your id, if you applied in time, would be run through CPIC so unless one is super squeaky clean, it might not be a good idea, esp without a letter from an employer. The last was mandatory I believe.
and from what I'm hearing, some protest groups WILL confront photographers who they believe are photographing members without their permission. Exactly what confront means, I dunno, but presume it will involve major 'in your face' time.