Go back to the chiro it may take a few treatment for the ART to work - I had 2 or 3 before I could run again and a few more treatments after.
When you start running again run run one mile stop stretch - run another 2 miles stop stretch - avoid hills - as soon as you feel the knee stated to hurt STOP ! ice your knees after running and keep foam rollling. The IT band starts int he butt area so yes you may get pain there too
Also - do some exercises to strengthen the hips - that is usually the underlaying issue
Do NOT bike - that`s as bad as running
Yes you`ll be able to run the half