I can confirm that "IQLL" works for the Los Angeles conference too. I'm normally not into those type conferences but I changed my mind when I saw the service thing. For the twenty dollar cost of admission I can get my back cleaned and calibrated. That's a no brainer.
"Get free service for your Phase One equipment
Bring your Phase One camera, digital back and lenses to the IQ photography conference, and we will service them for free, while you enjoy the conference!
The services we can offer include cleaning, calibration and firmware updates."