I used to adjust the camber in my 5.0 mustang with an angle finder and a metal straight edge, moving the top shock mount as far in as I could. I guess I wasn't too scientific about it, but the car didn't pull too badly even though I got it to corner a lot better.
I'm pretty sure the same trick will work for the front of the Focus. Worst thing that happens is I have to get an allignment.
Not sure that I can make it to the auto x this weekend... severe budget constraints this month. The good thing is that they run nearly all year round, I love California!