I put the snake down near the water in a sheltered area and hoped for the best. When I checked the next morning, the snake was gone. Whether it recovered and swam away or some other critter made a meal of it, at least it didn't die caught up in that netting. I absolutely hate that stuff! Currently I am trying to get permission to remove the netting but I won't know until Friday. As soon as I get the go-ahead I will gleefully rip all that stuff up.
Oh, and many thanks to the MM for taking the picture of the snake's belly while I held it. Our bandeds are unusally marked, so I try to get pictures whenever I can.