I couldn't tell you if they had to change the lights or not (though I doubt it). I didn't even mention the moisture there. They were working on something else and called me to tell me they saw the moisture and ask if they could have the car a bit longer to replace the strip (I was supposed to come back within an hour or two to get my car).
That said, do the Canadian cars us the US tailights (all red) or the Euro taillights (amber turn lights)? If the latter, perhaps that plays a role.
Thanks. Canadian and US cars have identical tail light setups.