Went to a Porsche dealership to have them match up the keyed lug from their master key set. They finally found it. Rather than buying a key, they agreed to pull out all 4 keyed lugs and replace them with unkeyed. Am very happy.
I found myself in this same exact situation this wknd trying to switch out some rims,went to our dealer today..No such luck on dealer replacements, I may be doing the 19mm BFH process this wknd, the only place I had not looked yet is under my seats, which will be done tonight ..!!