Is it possible or have you tried to integrate a "status" sensor of sorts?  So that you could via your phone see the status of the lights or doors? 

I have recently installed a new garage door opener that is wifi enabled.  With the manufacturers app I can see a door status (open/closed/opening/closing) and it has a 5-10 sec delay with warning sound before it closes.  I have found this to be really handy for letting people in, making sure no one "forgot" to close a door, etc.  I would like to upgrade my folks house to have this capability and your solution may work for me.

Thanks,

Jake