Yes, there is an online/phone tip line you can write to: https://bwl-lsf.cbsa-asfc.cloud-nuage.canada.ca/tip-sub-en.html
That said, they may still have to let him in if not convicted of anything or nothing that holds up to reasonable grounds for refusal. And the supporters could always write to the Minister involved, asking for them to intervene for his entry.
Ooo, maybe they'll release a figurine of "God", St. John Talbot or that cat dancer for wave 3! :-P
Now that I think about it, they'll probably release sand dune dancing Uhura or Marsh Mellon camping Spock.