I lost my wheel key too a while back, and like Bart said, you will need to go to a tire shop to have them removed. They must have some kind of socket with some teeth on it that just grabs the wheel lock. It took them about two minutes to remove my wheel locks, and they didn't charge me anything. The bit that they use did put some big divots in my wheel locks, but since I didn't have the key I was going to replace them anyway.
I got a whole set of lug nuts and wheel locks from McGard:
http://www.mcgard.com/Applications/A...59oK1ZwQ%3d%3d
The VX uses a cone seat style lug nut and wheel lock. I ordered the "cone seat lock" part number 24196 and they worked perfectly.
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong, it usually turns out to be impossible to get at or repair."
-Douglas Adams, Mostly Harmless