WordPress loop multiple orderby query with Types toolset

if you created the custom field using wp-Type then you would have to use wpcf-state-code

$state_code = types_render_field("state-code", array());
$args = array( 
    'post_type' => 'store',
    'posts_per_page' => 100, 
    'orderby' => array( 'ASC' => 'DESC', 'meta_value' => 'ASC' )
    'meta_key' => 'wpcf-state-code',
);

This should work, let me know.