Hi Bill!
If the live loader for woocommerce results page is enabled, the plugin will try to detect if the current page is the shop page, and if so, then will try to load the results through the shop page – like it’s in the tutorial.
However, if you place the same search shortcode to a non-shop page, then it will use it’s own results container. So there is a detection method, and if the shop archive is not found it falls back to it’s results container.
If you are using a page builder of some sort that has a pop-up feature, you can place the search into that, so more-less you can achieve something similar.
I have recently made a video tutorial on a woocommerce specific search example, I definitely recommend checking it here, I think you will find some good information in it.