Interesting factoid from our local paper. Over 1 million plants have been pulled by law enforcement already this season with an estimated street value over over $4.5 billion, and this is about a month until harvest time. That's just what they've found.
So, no, I don't imagine Nancy's DEA agent would be too concerned about her little operation.
Besides, in this county and others, the growing part of her operation is completely legal. Sort of, there's a few things they've overlooked, like size of garden and permit that they've never talked about in the show.