After the fact, you’re only option is color correction. I shot a segment for a corporate vid outdoors once and though I did a proper white balance, the day-glo safety vest threw everything off electronically for some reason. Instead of a perfectly balanced daylight shot all the colors were shifted as if I had used the tungsten preset (I don’t use factory presets when I have access to manual controls.) So I just color corrected all the ‘purple’ out and it looked just fine. Would have been less of a pain if the proper white balance had stuck.
Save the hangin’ for your DP he/she should have known better.
