N.C. Gen. Stat. § 160A-30

The governing bodies of the cities and towns after five days' written notice to the owner of record or persons in possession of the premises are hereby authorized to enter upon any lands to make surveys or examinations as may be necessary in carrying out the mapping requirements of proposed annexations under any provision of Article 4A of Chapter 160A; provided, the city or town authorizing such entry shall make reimbursement for any damage resulting from such activity.