She will complain about anything she thinks will cause you trouble even it if is all lies. Sadly she is that type of parent. Call your licensing agent first thing in the morning, tell them what happened, and to expect the call. Depending on the complaint they may still have to come out. But you sound like the type to keep your paperwork and such in line, so other than the hassle, no big deal.


ETA: Don't worry about unregistered, it is easy to spew a bunch of junk when you won't even register to own what you say. Obviously, this person is not a provider. Heck maybe it is even the mom you termed, or one just like her for all we know.