Disable First person controller During audio clip

Unity Engine
1

I want to create an audio containment script which disables first person controls during the playing of an audio file attached to a reader object.

I’m in game audio class, and I have audio files in triggered objects I want to have the player listen all the way through before they can click out of them

Scenario:

FPP picks up a letter, with a reader. script is set so that you click E to open, and right click to close out

Problem:

There is nothing to prevent player from clicking out of reader before audio is completed.

Please feel free to ask questions and I’ll answer as best I can

2 
using UnityEngine;
using System.Collections;

public class Letter : MonoBehaviour {

    public AudioClip ExamineSFX;
    public float SFX_Volume;
    public AudioClip ExamineVOX;
    public float VOX_Volume;
    private AudioSource Audio;
    private float SMX;
    private float SMY;
    private MouseLook CamSens;
    public GameObject Reader;
    private Examiner Pause;
    private GameObject UI;
    private bool LiveLetter = false;
   
    void Start () {
        Audio = gameObject.GetComponent<AudioSource> ();
        CamSens = GameObject.Find ("First Person Controller").GetComponent<MouseLook> ();
        Pause = GameObject.Find ("Main Camera").GetComponent<Examiner> ();
    }

    void Update(){
        if (Pause.Paused && Input.GetButtonDown("Fire1") && LiveLetter){
            CamSens.sensitivityX = SMX;
            CamSens.sensitivityY = SMY;
            Time.timeScale = 1;
            GameObject.Destroy(UI);
            Cursor.visible = false;
            Pause.Paused = false;
            LiveLetter = false;
            Audio.Stop ();
            Audio.PlayOneShot(ExamineVOX,VOX_Volume);
        }
    }
   
    void Examine(){
        SMX = CamSens.sensitivityX;
        CamSens.sensitivityX = 0f;
        SMY = CamSens.sensitivityY;
        CamSens.sensitivityY = 0f;
        UI = Instantiate (Reader);
        Time.timeScale = 0;
        Cursor.visible = true;
        Pause.Paused = true;
        LiveLetter = true;
        Audio.Stop ();
        Audio.PlayOneShot (ExamineSFX, SFX_Volume);
    }

}

this is the code for the object (letter that First Person picks up and reads)