Even a pardon won't allow you to cross anymore.

LOL ... The guy is upset because he was sent to secondary ONE time and now hates Canada. Try it in my shoes, secondary EVERY time we cross, all because of my work history in the US, 48½ years of military & law enforcement. One summer we crossed back and forth 6-8 times in the RV with Canada putting us in secondary every time. Shortest period was 45 minutes, longest was 3± hours. Do I hate Canada for doing their job of keeping their country safe, NO.