A single polyline can be also drawed in a static map:
url = GMaps.staticMapURL({
size: [610, 350],
lat: -12.043333,
lng: -77.028333,
polyline: {
path: path,
strokeColor: '#131540',
strokeOpacity: 0.6,
strokeWeight: 6
}
});
$('<img/>').attr('src', url)
.appendTo('#map');