UIATarget.setLocationWithOptions course not applying

I'm attempting to automate the path of a user via UI Automation. Ideally, the user location in an MKMapView would update according to the list of waypoints I've explicated in the automation script:

var target = UIATarget.localTarget();

var waypoints = [
    {location: {latitude: 37.33170, longitude: -122.03020}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03022}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03025}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03027}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03030}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03032}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03035}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03037}, options: {course: 180}},
    {location: {latitude: 37.33170, longitude: -122.03040}, options: {course: 180}}
];

for (var waypointIndex = 0; waypointIndex < waypoints.length; waypointIndex++)
{
    if (waypointIndex == 0)
        target.delay(5);

    var waypoint = waypoints[waypointIndex];
    target.setLocationWithOptions(waypoint.location, waypoint.options);

    target.delay(1);

    if (waypointIndex == (waypoints.length - 1))
        waypointIndex = 0;
}

The location portion applies without issue, and the user's indicator moves along the path. However, the course option doesn't seem to be doing anything. I've tried 90, 180, -90, 3.14, and 1.57 as values for the option, to no avail.

I've also tried adding in the speed: 8 parameter to options, with no change.

Seeing as how this appears to be the only way to