Dust (or lint), bottom left corner

I just opened my Nexus 6P today and everything's great (no dings, scratches, screen is all good) except in the bottom left corner. Between the screen panel and the metal body there's a little bit of what could be white dust or lint (hopefully not the phone's internals :O ) that's stuck in the gap. Think it got there when the phone was assembled. From all but one angle you can't see it (even then you need to be close). I just happened to be looking in the right place at the right time to see it. I don't know how to get it out, if I even can? Will it shake itself loose later? I don't think it warrants sending the entire phone back.

Even when looking for it I can't find it half the time, but my perfectionist senses are tingling. What to do?