FYI I stayed at Delta Toronto this weekend and when I went to get in my car it wouldn't unlock. The valet said there was another Tesla there with the same problem, and they'd seen it on BMWs also. Apparently CN Tower creates some kind of dead zone for key fobs. Earlier I had been cursing how my US phone was almost entirely useless in Canada but now I was glad I brought it as I could connect to the hotel wifi and unlock my car that way. Also, when I crossed the border at Queenston the Tesla had no data connection for several kilometers. I don't know what the issue was there.