When they first started playing 4:00 o'clock games in Foxboro, we arrived on Sunday at 1:00. Instead of fighting our way in, we parked in a near empty lot. Once we figured out we were three hours early, we kicked back, tailgated, and listened to a Red Sox game. I'll probably never be that early to a Pats game again, but it was the best time I ever had in Forboro.
Bring a radio or TV to the game, eat some food, and enjoy the 40ish temps you are in for. (It's also a lot of fun to warm up to Three Games to Glory. Fire up the DVD and make some friends.)