D7000: Focus shift in different lighting cond.

So I got my camera back, and I dunno what to say really. Well first, now the camera focuses pretty good in warm orange/yellow light, and frontfocuses in cool/blue light. The difference might be slightly less obvious, but there is definitely still a difference based on lighting conditions, maybe a difference of equivalent 8-10 steps in AF-tune.

Very frustrating since I specifically told to check in different lighting conditions. The repair bill basically say they calibrated the camera/lens, updated lens firmware.