My theory was if it is crashing now, how annoying will it get when you don’t have the option to return it?
Exactly! The challenge will be them having one in stock when I go in to return it and replace it with a new one. My local store seems to have stock first thing each day, but of course it's gone by late afternoon.
I have no way of knowing if that particular app caused the issue or not. Since I'm not going to the Apple Store until Friday, I'm considering deleting that app and resetting the phone as new and just see how it performs the rest of the week before I can get there. If I have any problems between now and Friday, then I'll know it has to be replaced.