How can I configure CX call queues to play audio at 5pm and disconnect any actively queued calls

Our call center agents leave at 5pm.  On high volume days, we may have 10 calls waiting in queue at 5pm when our agents logout for the day.  We find that many of these calls will continue to remain in queue without accepting the callback option because they are unaware no one is going to be available until 8am the next morning.  If we configure a queue event to disconnect calls when there are No Agents Signed In, we run the risk of disconnecting calls during the middle of the day when agents are leaving and returning from lunch.  There is the chance we may have brief moments when all agents are logged out during business hours.  So, the priority queue event, No Agents Signed In, is not preferred for our environment.  I have configured the priority queue events for Queue closed, with a single play audio message that explains the office hours have ended and to call back during normal office hours with the event type set to “Call Termination.”  However, this does not occur for active calls at 5pm.  Has anyone had success configuring this option?

I have an open support ticket for this question, but support has yet to provide a clear answer and is researching.  This seems like a simple request.  We previously used Cisco CCX and this action was in place by default.