EPILOGUE
Well, I wasn't asked or hammered to pay the LDW in either Montreal with Thrifty or in Charlottetown with Hertz.
But the advice given here showed me how to prepare [forewarned is forearmed] to make sure as to how I indeed was covered. For those of you in BC, I have had no accidents for >20 years and therefore was able to use Rodestar from ICBC.
By the way, I found the Montreal driving pattern similar to ours in Vancouver and had no problems, either in Montreal or Quebec City, or on the highways between.
Thanks to everyone who helped.