Exclamatory used in a sentence

Exclamatory in a sentence as an adjective

It's pretty common and I can filter it out and/or understand the exclamatory nature of the use.

It's essentially just a bunch of tables with an exclamatory note on the outliers. More importantly, I'm missing things like household size and square footage.

Are non-standard in formal English, and the advice I've seen online -- and in the Chicago Manual of Style I have on my bookshelf I just checked -- suggest that an "exclamatory question" just uses the exclamation point. It's just that "?