WordPress running two queries together - php

Question

This is an events website that handles the location of each event relative to the users location and displays the distance in search results.
I'm using the WP GeoQuery extension to allow me to query based on distance. However, it doesn't work well with things like tax_query. So, I'm wondering if there's a way of running the WP_GeoQuery to query for events within a certain distance, then run the result of that through the normal Wp_Query to get it to filter for the correct taxonomies and other arguments?
Here's the Geo Query:
$url = "http://freegeoip.net/json/". $_SERVER['REMOTE_ADDR'] .'';
$geo = json_decode(file_get_contents($url), true);
$geo_query = new WP_GeoQuery(array(
// location stuff
'latitude' => $geo[latitude], // User's Latitude (optional)
'longitude' => $geo[longitude], // User's Longitude (optional)
// radius breaks the query if using tax_query too
'radius' => 25 // Radius to select for in miles (optional)
));
And here's the normal WP_Query:
// add query for title
function title_filter( $where, &$wp_query ) {
global $wpdb;
if ( $search_term = $wp_query->get( 'title_like' ) ) {
$where .= ' AND ' . $wpdb->posts . '.post_title LIKE \'%' . esc_sql( like_escape( $search_term ) ) . '%\'';
}
return $where;
}
add_filter( 'posts_where', 'title_filter', 10, 2 );
// dates to and from
function date_from( $from ) {
$from = str_replace("meta_key = 'date_%_start-date'", "meta_key LIKE 'date_%_start-date'", $from);
return $from;
}
add_filter('posts_where', 'date_from');
function date_to( $to ) {
$to = str_replace("mt1.meta_key = 'date_%_end-date'", "mt1.meta_key LIKE 'date_%_end-date'", $to);
return $to;
}
add_filter('posts_where', 'date_to');
// convert date to yyyymmdd
$date1 = str_replace('/', '-', $_POST['when']);
$when = date("Ymd", strtotime($date1));
$date2 = str_replace('/', '-', $_POST['when-2']);
$when2 = date("Ymd", strtotime($date2));
?>
<h1>Search</h1>
<div class="events">
<?php $args = array(
// general
'post_type' => 'event',
'post_status' => 'publish',
'posts_per_page' => 2,
'paged' => $paged,
// what input
'title_like' => $_POST['what'],
// category filter
'tax_query' => array(
array(
'taxonomy' => 'main-cat',
'field' => 'slug',
'terms' => $_POST['main-cat']
)
),
// date filter
'meta_query' => array(
'relation' => 'AND',
array(
'key' => 'date_%_start-date',
'value' => $when,
'compare' => '>=',
'type' => 'DATE'
),
array (
'key' => 'date_%_end-date',
'value' => $when2,
'compare' => '<=',
'type' => 'DATE'
)
),
);
$temp = $wp_query;
$wp_query = null;
$wp_query = new WP_Query( $args );
$wp_query->query('posts_per_page=2&post_type=event'.'&paged='.$paged);
When used individually they work fine. But I'm not sure how I can run one of them, then use the result to put through the other query. Is this even possible?