So...
The traffic on 264 is no too bad however if you are coming from Raleigh, it slows down around Knightdale and Interstate 540 but clears after that to a two lane both ways before the split. I have never gone from Zebulon to Wilson however. I have done Clayton, NC to New Bern, NC though on US 70 bypass/ Interstate 42.
Zebulon is a town of just over 6,900 so I think it will put a damper on some things.
Out of the Five county's this is the rankings.
1. Wake
2. Johnson
3. Wilson
4. Franklin
5. Nash