jQuery Grid Plugin - jqGrid

I'm doing a proof of concept for my work and I'm bumping into issues. My base grid looks like this.

url : <link>,
datatype : 'json',
colNames : ['Date', 'Vendor', 'Item #', 'Pack', 'Description', 'History' ],
colModel : [
            { name : 'date', index : 'date', width: 75, sortType: 'date', datefmt: 'mm/dd/yyyy'},
            { name : 'vndr', index : 'vndr', width: 300},
            { name : 'item', index : 'item', width: 60, align : 'left' },
            { name : 'pack', index : 'pack', width: 40, align : 'right', search: false },
            { name : 'desc', index : 'desc', width: 300, align : 'left' },
            { name : 'hist', index : 'hist', width: 50 } ],
rowNum : 25,
height: 'auto',
width: 1036,
altRows: true,
sortable: true,
pager : '#pager', sortname : 'date', sortorder : 'desc', viewrecords : true,
jsonReader : { root : 'root', page : 'currentPage', total : 'totalPages', records : 'totalCount', repeatitems : false },
caption : 'Text'

When I go to export via this code

$('<table id>').jqGridExport({exptype:'jsonstring'});

I seem to get every config option available including the defaults instead of just the stuff I've manually defined. According to the /jqgridwiki/doku.php?id=wiki:import_methods

Like I said, I could just roll my own export but that seems like a lot of overhead. I might just be doing this wrong but searching google for 2-3 days hasn't netted me any working examples on line other than some asp.net stuff which I can't run(java). So, I was just curious if I was doing this wrong or if this was maybe a bug that hadn't been found because import/export isn't that often used.

Any help would be greatly appreciated.