When I google "snow fence" the usual advice I see is to place the snow fence up-wind 35 times the height of the fence ... thus a 4' snow fence should be 140' up-wind of your driveway.
Read the same but at mostly 20X the height of the snow fence. Just put three sections up around my place this Saturday. Was out seeing what the high winds were doing behind them today. Just an experiment for me, first time. If one or two or all three don't work, will cut them down and roll 'em up on a calm day. (I just watched the video explaining the 35h you are talking about).
I have a south facing home so the snow travels over the roof and piles in front of the three stall garage. Bigger problem is the blowing snow between the properties that wraps around the house and fills in. This is the areas I tried to target with snow fencing. We'll see.
Sure glad I picked up a 6 foot blade for the side X side. Works wonders. Retired now so there is no big hurry to get it off the pavement.
I will agree with the fence being 5-6" off the ground, read that and followed it. Neighbor put up two sections and used only two or three anchor points to his fence posts and put it on the ground. His was already flapping after yesterdays winds.