Originally Posted by
yyznomad
Sorry, can you elaborate a bit... for MUCYYZSFO, you did VDB after preclearing for your YYZSFO flight and then decided to have dinner groundside in Toronto? And if so, you didn't have to clear Canadian immigration, but then had to go through US preclearance a second time once you returned to YYZ post-dinner?
I did have to clear CBSA. Sorry, I realize I left out that very important fact.
I have never been able to leave a TB area without going through CBSA, regardless of airport or circumstances. I've done it in YVR, YYZ, YUL.