Notwithstanding Subsection E2 above, fences, hedges or shrubs within fifteen (15) feet of any driveway, regardless of whether the driveway services the residence in question or a neighboring residence or use, shall provide a sight triangle in which all fences, hedges and shrubs will not exceed four (4) feet in height and shall be constructed, planted or maintained to provide a minimum of fifty (50%) percent open area. The term "sight triangle" as indicated in this section shall mean the land described as follows:
Beginning at points on both sides of the driveway where that side of the driveway intersects with the street boundary line; thence proceeding along the street boundary line fifteen (15) feet away from the driveway at a point; thence proceeding at an angle, in a straight line to a point along the side of the driveway fifteen (15) feet from the intersection of the driveway and the street boundary line; thence along the side of the driveway fifteen (15) feet to the point and place of beginning.