Here in Austin, thieves have discovered how easy it is to yank forks and separate those even if the front and rear wheels are secure, and as of now, there isn't really any way to secure a fork down other than using Pinheads or Pitlocks. I'm trying to urge bike shops to carry them because they can mean the difference in returning to a bike, or a frame, especially near the UT area. Even if wheels are secured down, someone popping the fork off is still possible in cases.