In the Midwest I don't think they do fly-overs looking for weed
CNN and other tv shit don't care unless you got handcuffs on,
the deal is ..underfunded cops and there like, use Bing Maps(best but blurry)
and or the paid subscription service to Google Earth to patrol their areas
even old farmer McDonald who's land you're growing on ..user these sat services
any strange little round green dots, where nice dark green sticks(corn) are
is immediately obvious, they WILL catch you, either with a drone or a hidden pir camera
good luck and please post the pics back here