I disagree with you on this. The person who sits in the brutal cold at Soldier Field in Chicago is a football fan. Many people (maybe most?) who attend Super Bowls have little or no interest in football and probably wouldn't know how to dress for anything colder than 40 degrees anyway.
The security cordon around MetLife stadium will not allow limos to drive right up to the stadium. Cars can enter the parking lots, and occupants walk to the gates..All others have to board special buses at sites several miles away..
I understand your thinking about Superbowl fans, and we can be certain there are many of those who bought the tickets more for showing off than being real fans.
However ticket prices as high as they are, 95% of ticket buyers will show up, or at least give their tickets away to real fans.