I didn't see the game yesterday but I was able to tune it in on the radio.
At one point early in the game with the Packers in possession I heard a huge roar from the crowd, immediately I thought we had turned the ball over.
The announcer then commented that "the roar you heard was coming from Packers fans" who he estimated to be 45% of the crowd.
I was very happy to hear about the huge following of Packers fans attending an away game.