I attached an image from google maps. I've outlined the path of the shot in blue, the tee box in red, and where the netting is in yellow. The net is protecting, not our own green, but the green from a neighboring hole. Its a bit hard to tell from the image but depending on the placement of the tee box, front or back, the shot becomes possible when placed towards the back.
Thanks for the continued feedback. I thought more would side with the golf course rule on this one but it appears to be opposite of what I expected, with valid reasoning. The question originated from the point of view that if, four of us are playing, three of us follow the dog leg and one of us go over the net, should we enforce the rule? The impression was that the local rule was to be enforced regardless of the reasoning behind it (safety or not). It sounds like the consensus is that the local rule should be enforced, if it conforms to the Rules of Golf. The other three in the foursome, don't have any grounds in which to enforce the local rule because the local rule does not meet the Rules of Golf standards. Meaning the course has no right (thus the other golfers) to enforce what path the ball can or cannot take. And that if the sign is there merely for safety sake, then the course should build an adequate structure to disallow the shot.
That being said, if they were to setup white stakes indicating out of bounds on the hole, and the ball travels over the net and lands outside those lines, then, in fact the ball would be considered OOB, since they can declare an OOB location based on the landing spot of the ball.
It appears that from now on we'll have to allow the shot to be taken without penalty, at our own risk of being kicked from the course.