Get the node title into a webform block and change the destination mail address for each node. Is this the right way?

My issue:

I have a content type called "store". The website has 14 total stores which all of them should have a contact form. I created a webform and used the block option so i wouldn't need to create 14 webforms for each form. The webform must have a dynamic value on the field store to identify which store is being contacted. Since the node title is the name of the store I am using the node title to identify the store.

The webform component $form['submitted']['loja'] is no editable so I used the default value to achieve this requirement. I also have some code commented out if i happen to need to change the email address destination for each store as well.

I used the following code for that in a custom module I created for the website:

function mymodule_custom_form_webform_client_form_84_alter(&$form, &$form_state, $form_id) {
  if ($form_id == 'webform_client_form_84') {
    //dsm($form);

	//Get the current path of the page/node being displayed
	$q = $_GET['q'];
	$q = explode('/',$q);
	$qid = (int)$q[1];
	$node = node_load($qid);
	//dsm($node);
	
	//Get the alias of the current path using the drupal API
	//use this for validation because the form should only run this code on lojas/*/[node-title]
	//$path = $_GET['q'];
	//$alias = drupal_lookup_path('alias', $path);
	//dsm($alias);
	
	//$email_loja = $node->field_email_lojas['und'][0]['email'];
	//$webform = node_load(84);
	//$webform->webform['emails'][1]['email'] = $email_loja;
	$form['submitted']['loja']['#default_value'] = $node->title;
  }
}

Let me know if you know a better way of doing this or if you find any security issues here.