The left side of the image without the CPL does look sharper. The gas station sign and bricks on the left side of the image look more in focus. However, the camera angles and lighting are not identical. But I do think the image without the CPL does look better.
Something to keep in mind is that the focus points will always be near center. Anything near the edge of the frame (ex. the gas station sign) will not be as focused as the center.
We would be happy to send you a replacement CPL or do a warranty exchange as well.
Let me know how you'd like to proceed.