"Nothing. No juice. Still on zero percent," said Tyler Beard, who has been trying to recharge his Tesla at an Oak Brook Tesla supercharging station since Sunday afternoon. "And this is like three hours being out here after being out here three hours yesterday."
"Like any new technology, there’s a learning curve for people," said Mark Bilek of the Chicago Auto Trade Association.
Lmao, no my dudes, it's pretty well understood that you need to keep the battery warm enough to be able to charge. This is not some fucking unexplored field of science!
I'm absolutely cackling at the radio silence from Tesla + dozens of Tesla owners just sitting around cluelessly wondering why their car hasn't charged at all in over 3 hours. Maybe another 3 hours will do it, keep trying 
Also, a cursory Google search leads me to believe that the Model 3 has no dedicated battery warmer that could be used for this very situation, but instead some system that "runs the motor inefficiently to heat up the battery". Doesn't sound like this can work when the car is stationary, I guess tesla engineers forgot about the Midwest when cutting parts to save on production costs 
i remember you used to go to a holiday inn or whatever and the parking row by the building would have posts with outlets for that. Stopped seeing them eventually but did have a couple winters where somebody's car wouldn't start because of the cold, even with a garage.