I dragged my whole family there one Christmas for Midnight Mass (27 years ago). I have several members of my family who are not Catholic, but they came along because I insisted.
People started gathering at 9 PM, so the church was almost full when we arrived at 10 (Mass was at 12) and took our places in the next to the last pew. Our cars were parked far away in a lower parking lot.
My mother (from CA and not a Catholic) wanted to see everything, so she took a center aisle seat. Every time those huge doors opened, the wind and snow whistled in. She was wearing a short fur coat, but it was California weight and she was just shivering. I encouraged her to move over to the wall and stand near the bank of votive candles. She was really insulted and stubbornly stayed put — shivering all the way.
At the end of Mass (now 1 AM) my (new) son in law who had sriven in that afternoon from Ohio looked at me and asked where he could get gas for his car! What? Gas, at 1 AM on Christmas Day way out on Holy Hill? Impossible. Luckily it was all down hill to get back to our house. Fumes and prayers got us home safely and we’ve laughed about it ever since.
And I have never again required attendance at Mass for non-Catholic relatives!
I have to admit, though I have been to mass there many times, I have never attended a midnight mass. I watched it on TV.
We used to ride our bicycles over.