I successfully plugged in when I arrived just before midnight and camped in the car, up bright an early Friday morning for a $35 breakfast (!! don't get the fruit salad) and hit the lifts when they opened.
Thankfully all three Tesla chargers were open, as they malfunctioned one by one!
About 20 seconds after plugging into the first two, charging was stopped due to charging hardware issue.
The wall connectors' green light changed to blinking red, and they would not charge again.
I plugged into the third first reducing the current to 10 amps and slowly raising it to 15.
Then I researched and found that the single blink was a ground fault and the wall connectors would reset after 15 minutes. Sure enough they did.
Once another was green, I raised the current and sure enough just as I got to about 28A the third one tripped.
I moved back to the first and was charging at 24A (yeah, 12:30 at this point...who needs sleep when you can troubleshoot chargers), tried going up to 32 but it again tripped. But this time I noticed they had shutoffs mounted to the back and reset it.
So I had to keep it at 24A all night and charge very slowly especially with the heat running.
So just a warning, these may have a GFCI issue, or maybe it was because they were packed in the snow, but if you get an error and they turn red, switch them off and back on, reduce your current to 24A, then plug in again.
Shockingly I went in to get breakfast at 8:15 and returned at 8:45...in that time four more model 3s showed up!
Even funnier is when I left at 3:45...they were all gone!
Thanks for your help, it was a spectacular day of skiing!