Vista - No timeout for stop-service cmdlet?

To perform some testing I have a service that intentionally takes 10 minutes
to shut down. When I stop the service from the Services mmc snap-in it
eventually times out and gives the error "Error 1053: The service did not
respond the start or control request in a timely fashion." This is what I'd
expect. However, when I try to stop the service using the stop-service cmdlet
it prints out the expected "WARNING: Waiting for service 'MyServiceName' to
finish stopping..." for the entire 10 minutes until the service actually
exits. It never times out or gives an error that the service might not be
responding.

My question is two fold. First, is there a way to specify the time out for
the stop-service cmdlet so that it gives an error if the service takes too
long to shut down or stops responding? Second, am I going about this in the
right way?

Here's my code:

#Verify status of service and stop it if running
$serviceInfo = get-service -displayName $serviceName
if($serviceInfo.status -eq "Stopped")
{
"Service is already stopped my friend"
exit 0
}

stop-service -displayName $serviceName