It's all what you want to do, but as other said, the way you put it, "driving around locating waterfowl" , isn't legal. But I've jump shot for years a couple certain creeks. I don't see anything wrong with it, it's legal for sure, guys been doing it for years. You kind of get to know where the birds tend to hang out, sneak up, ( I let them fly), then shoot them. I enjoy decoying birds mostly, but I don't feel "unethical" if I hunt this way a few times a year. If I know the birds are around, I will tend to spook them out before first light, then set decoys and hope they come back.