I purchased a set of valve stem caps off the Genesis website. Sharp looking black with the Genesis logo. Went to put air in my tires recently and the caps are frozen to the valve stem. It is at the dealer now and they may have to replace all four valve stems since they can't get the caps off. Since the valve stem contains the sensor they cost about $250 each. Anyone have this problem? There is no warning on the website that this is a possibility. Seems like Genesis should cover this cost.