YAY! IM SO HAPPY FOR YOU! Get a cheap t400 or d630 laptop and EDIABAS cable and reinstall INPA and ISTA D. PM me if you need installation links. I had a good feeling it was very close to where it was stolen. I believe you can delete all keys from the car you are no longer in possession of using DIS or ISTA to prevent that key from ever be used again and sync remote locking from each key you are in possession of as well. That wouldnt stop then from using it in the driver door key cylinder though to unlock it but it wouldnt start the x5...

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02 Imola on Black Dinan S2 4.6iS
00 RoyalRot on Sand/Black 740i Short Sport