Getting Display Names from List Not an Array???

[kemmy1]

I'm gathering all my notification records from my custom table and gathering what is in the "allow_opt_in" field. Then I'm comparing the array with what is in the typeUser variable and if there is a match, push the sys_id to an array.

This only works if Facility User is the first array in the list.

If I swap out optIn with "Facility Admin, Facility User" it works fine.  But getting optIn from "grNotifications.getDisplayValue('allow_opt_in');" it's not working.  

var array = [];

 var typeUser = 'Facility User';

 var arrayUtil = new global.ArrayUtil();

 var optIn = '';

 var grNotifications = new GlideRecordSecure('My Notification Table');

 grNotifications.query();

 while (grNotifications.next()) {

     optIn = grNotifications.getDisplayValue('allow_opt_in');

     var optInSplit = optIn.split(',');

     var arrayAnswer = arrayUtil.indexOf(optInSplit, typeUser);

     if (arrayAnswer >= 0) {

         array.push(grNotifications.sys_id.toString());

     }

 }