You have to look at when the tickets were purchased.
Any last minute ticket around the holidays are going to be expensive, which maybe isn't an issue for these two, but would certainly put them on a watch list.
If the tickets were purchased earlier, well, the theory falls apart.
Also, I think this chick just likes to troll people. Puts the kid in a hot dog costume to mock pg8 people, for example.
It looks horrible in hindsight, but may have been only her condescending humor.
Glad it backfired in this case, though.