I carried the netting, (snake n all) to the house, and got out the scissors... And carefully started cutting netting away from the king snake.
I whispered "Easy sweetie", to her from time to time... she seemed to understand that I was trying to help.
When I unwrapped her coils, she cooperated, wrapping her liberated back end around my hand as I worked to liberate her front end.
The scariest part was the fear of harming her with the scissors...
She seemed to understand the need to relax some of her muscles to make room for me to get the scissors between her body and the netting.
Here's hoping we meet again under better circumstances!