Horizontal line across the screen

So I just got a replacement Nexus through my warrenty at Best Buy, also had them put on a Zagg screen protector.

I am messing around getting it all set up and like 2 hours later, I notice 2 horizontal lines across the screen right next to eachother.

Its near impossible to see it when the screen is dark or off but when it is displaying colors it is very noticable..especially at max brightness.

Basically it looks almost like a scratch although I know it is not a scratch since the screen was exposed for like 10 seconds betwen the BB guy opening the nexus and putting on the protector.

The line goes about 60% acorss the screen

Has anyone else experienced this with their Nexus? My first one did not have this issue.