Driving west on NC 24 yesterday morning, from Jacksonville to Fayetteville, I saw signs for NC 24 business routes in Autryville and Roseboro. Neither is in the HB. These are along the part of NC 24 that was realigned, including bypasses of those two communities. Our February 2019 Updates entry for that change states that the bypassed segments are "not primary routes", but the signage I saw suggests otherwise.
I did not travel either of the new business routes yesterday. To the extent they follow old NC 24 alignments in those communities, I've previously traveled both of them.
Neither Google Maps, OSM, nor any of the non-OSM online maps available in our highway browser show the old alignments as business routes. Some of the maps haven't even caught up with the new alignment, and show the old alignments as still NC 24.