PHP - Curl website behind disclaimer form - php

Question

I'm trying to parse a website with curl.
However the first screen is a empty form.
So far I'm getting an error (301-302)
Here is my code:
<?php
$url = "https://www.interiorhealth.ca/HedgehogPortal/?returnUrl=/HedgehogPortal/facility/Table";
$url_redirect = "https://www.interiorhealth.ca/HedgehogPortal/facility/Table";
define('USER_AGENT', 'Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/35.0.2309.372 Safari/537.36');
define('COOKIE_FILE', 'cookie.txt');
define('FORM_URL', $url);
define('REDIRECT_URL', $url_redirect);
$postValues = array();
//Initiate cURL.
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, REDIRECT_URL);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, http_build_query($postValues));
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_COOKIEJAR, COOKIE_FILE);
curl_setopt($curl, CURLOPT_USERAGENT, USER_AGENT);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_REFERER, FORM_URL);
curl_setopt($curl, CURLOPT_FOLLOWLOCATION, false);
$server_output = curl_exec($curl);
//Check for errors!
if(curl_errno($curl)){
throw new Exception(curl_error($curl));
} else {
echo $server_output;
}
?>
Any help or pointers would be gladly appreciated.
Thank you!