I would hide your phone, or any numbers (especially if you have alot of people on it) sometimes if you get caught growing, and you have say, 20 johns, 3 mikes and 6 daves on your phone, they begin the whole 'intent to supply' bullshit... stash anything you can, (the more incriminating the better) and make sure its hidden WELL... then give it a week and if no-one turns up, your okay...

if he did see it, and did report it, they would have been to your house by now, especially if the blind was broken, they wouldnt need a warrent if they could SEE the plants...

If i were you id be more worried about the dark period being interrupted... then again, it hardly matters on 18/6.... good luck..