S6 had a school field trip today, going to Chuck E Cheese and the movies to see The Lorax. About an hour and a half ago I get a phone call from his teacher saying that NJ has showed up, is this ok? Apparently about a week ago NJ had called the school to talk to kids' teachers, requesting a parent/teacher meeting with each of them today to talk about the kids performance in their classes, which is all above average. (NJ has recently stepped up her show of participation in the kids' lives, including verbally almost FORCING D9 to break out her homework while she was on the phone so she could help her.) Teacher told her that there was a field trip today but that they could schedule something for some other time, NJ left it at that.
Flash forward to today where she shows up unexpectedly at pizza place where class is eating. Deep internal breath, keeping big picture in mind, I politely tell teacher that while I was not aware that my son's mother was going to show up today, there is nothing that prohibits her from being around him, and as this was her weekend to pick them up for their visit anyway (suppressing internal "...but not until 6pm!!"), I say that if she wants to let him ride with her after the activities when the kids are released, that is fine. A while later, I get a text from the teacher saying that my son chose to ride the bus with the rest of the class

I text back thanking her for keeping me in the loop on the situation and apologizing for any awkwardness, to which she says no problem and "....it was nice to meet D6's mother." (Bite back internal "That'll change.")
I figure I handled it according to Hoyle, while technically her time doesn't start til 6 pm that kind of nitpicking in this situation would be juvenile, nonproductive, and paint the wrong picture. Now if she had tried to take him back with her to Houston INSTEAD of field trip, then we would have had an issue! Won't say that it doesn't annoy me greatly (it's not like she was just in the neighborhood from three hours away), but used my brain instead of my raw emotions. You guys have any suggestions for if there's anything I missed, any sort of followup I should do, send the teacher some cookies or something?
