Custom function to pass in a jQuery script to set a cookie via manual JS during 'on_click' trigger event and on form close.
<?php
add_action( 'wp_footer', 'my_custom_popup_scripts', 500 );
function my_custom_popup_scripts() { ?>
<script type="text/javascript">
(function ($, document, undefined) {
jQuery('#pum-1483').trigger('pumSetCookie');
setTimeout(function () {
PUM.close(1483);
}, 5000); // 5 seconds
}(jQuery, document))
</script><?php
}