There were definitely some interactions but of course Eichmann tried to keep social activities to a minimum just so much that he didn't give rise to any suspicion.
I assume that people don't want to talk to reporters because of the bad image cast on them. I mean having a mass murderer in your community and not identifying him people may think that you're either dumb or you were actively ignoring it. After the war people mostly tried to forget about the Nazis as a coping mechanism for their common guilt.
After the war he lived four years in the same small village as my grandmom, breeding chicken and working in the woods until he saved enough money for his escape to Argentina. He supposedly even sold his eggs to the Jewish survivor community of the closeby concentration camp Bergen-Belsen.