Newps wrote:
Then they give the radar back to the center for the night. No radar
facility has to call center for a release under normal circumstances.
Some things that may pop up that require a call are weather or accident
related ground stops and ground delay programs. A loss of automation
can also necessitate a call for release program.

I guess that was the case. The local controller was using the ASR and
did approve a heading change for weather for one aircraft but he let the
Center know about that.

It sounds confusing. A G/A pilot could show up VFR 25 miles out and
call LEX Approach for an ILS. Would the local controller ship him off
to Indy Center or would he call Indy for permission to vector the guy
onto the ILS?