One clarification on returning your absentee by mail ballot in person: it can be returned in person to any early voting location but on Election Day it cannot be returned to a polling place. You must return it that day to the board of elections office. Here is the link where this is explained from the Board of Elections:
https://www.ncsbe.gov/voting/vote-mail
Denise Carman
Date: Thu, 8 Oct 2020 15:14:18 +0000
From: Denise Carman
Subject: Returning absentee by mail ballot in person.