Use this code example to use Google autocomplete without the autofill for the user geolocation. Replace the lat and lng values with your default location.

add_filter('frm_geo_default_location', 'set_geo_default_location' );
function set_geo_default_location() {
	return array(
	'lat' => 40.7831,
	'lng' => -73.9712,
	);
}