I am attempting to find a reference to popup the info box into a modal. My usecase is such that the Google Maps popup is a very useful navigation tool, however since it anchors clicked object it is often off screen on a mobile device.
I haven't found anything that suggests this is possible.
This was something I looked into but never went anywhere with. Here is an example I did not create this just something I had tucked away in my bookmarks... seems to fit with what you are doing