Feds, no. Sheriff, yes.
DEA gets fed money for free to use airforce pilots to get hours in the air in exchange for spotting gardens, look up Civil Air Patrol (CAP), planes with the red stripes.
My buddy grew five plants last year( Mendo County). Legal, but neighbors complained.
Task force raided.
Fairly new car/nice furniture/some expensive artwork; got taken. Because of no provable source of income...
He's still paying the lawyer and is probably looking at fines.
Around these parts leo buys their toys and has a lot of fun with raiding muthafuckers.
There are bigger fish to fry, but if it's convenient they'll look at the easy pick'ens.
Just sayin.