Pakistan coaches Bin Laden wife to avoid answering questions. Flawed interogation?

Pakistan destroyed America's chances on getting intelligence by making the US wait unnecessarily before being allowed to interrogate. This meant possible loss of data that could have been time sensitive. Also, Pakistan insisted all three wives be interrogated together rather than individually- a highly suspect and unusual request. This never happens as interrogations will never work under these conditions. And finally they insisted they will be present throughout the entire duration- again an unusual and highly suspect move. Even if Pakistan didn't help with UBL's capture they could at least assist with the interrogation. Who's side are they really on after 20 billion in aid?