While monitoring the Atlanta system, this morning, I came across an active talkgroupd ID of 45040. It was a police agency, but definitely not City of Atlanta, as the unit were using 400 type call numbers, and it was not GSP. I heard traffic concerning something at "Camp Creek Parkway and Airport Road" and 'Ramp to 285 from Old National" It sounds to me like it could be College Park or East Point PD? Can anyone verify this? I will try to listen more this afternoon.