This violates the Linux Standard Base specifications, specifically:

If the status action is requested, the init script will return the following exit status codes.

0 program is running or service is OK

1 program is dead and /var/run pid file exists

2 program is dead and /var/lock lock file exists

3 program is not running

4 program or service status is unknown

...

This should be very easy to implement in the service script.