Its hard to tell from the picture if your saying the panel sits 1/8th of an inch out of place or the paint line is 1/8th of an inch out of place.
If its the paint line just get some tape, flat black paint, sand paper, and drop cloths and hit it up yourself. Tape off the area and set up the new line. Sand down the area to be painted...remember drop cloth the whole car or you will be claying the car later. Finally paint it and let it sit.
If its the panel then you can adjust how it sits yourself, there are 2 screws on the back side next to the wheel. I would try loosening those, and see if the panel goes the 1/8th of an inch or so back to the correct spot. Easiest way to loosen those is get a no2 Phillips bit and a small wrench that fits it..think its a 1/4.
Our Zs are notorious, unfortunately, for having mis matching panels since Nissan is dumb and still uses a tri coat paint...QAB in our case with the PW cars.
