What about the pot-smoking she witnessed, and the fact that the boy is there a lot of the time, if not actually living there full time?

Whenever I pull up to the house, the garage is open a crack on the bottom, and they see me and open the whole garage. She also reeks (I want to hold my nose) of marijuana, and her boyfriend will still be sitting in the garage just really out of it. So obviously she is smoking in her garage and gets the munchies and calls us out. Not too big of a deal though, what you do is what you do. But what I'm concerned about is that the 2nd and 3rd time I delivered, there is a little boy there..maybe 3-4 years old, and he too would run out the garage when he saw my car pull up. So she's doing drugs while I'm assuming her son is there, and even in the garage with her.
Or should she maybe just call, tell them what she has seen - and hopefully the intake worker can decide and tell her if it is worth pursuing or not?

They don't go in just because someone phones, do they?