Inheriting programmatically set filters AND exposed filters from programmatically rendered view

For various reasons I'm programmatically rendering a view, and would like to be able to programmatically set filters, and then have the Views Data export pick up both the programmatically set filters, and some exposed filter values...

How do this? Is this possible?

My code for the filter setting and rendering:

$view = views_get_view('tin_can_package_answer_statements');
  $view->set_display('default');
  $filters = $view->display_handler->get_option('filters');
  $filters['activity_id']['value'] = $package->course_activity_id;
  $view->display_handler->override_option('filters', $filters);

  $content = $view->preview('default');