I remember the SB signs (though I wasn't on the trip down this time around, just back), but didn't see anything NB. The exit is signed only as GA 99, no control city, no I-95 BL. We followed the route right into town then took 99 around the backup that had spilled onto 17. I was surprised by not only the lack of signage for BL I-95, but also for GA 99 and US 17. For TM purposes, I suppose any single mention is enough to keep it.