Caller: Number that cant be called back

After the call my location turned on and my phone started freezing up as if it suddenly had a million things to do.
I suspect it's one-off those things that the police do to force your phone to triangulate with the cell towers around you and allows them to narrow down where your phone is located and most of the time you will be attached to it :)

Scam caller, with no answer when answered

Answered call and no one on the other end. Suspect scam caller