I should also have mentioned that it was a little hard to start a few weeks ago, but that had largely straightened itself out. I thought it was a dirty injector and ran some BG-44K through it. That may have nothing to do with the current situation as spark didn’t seem to be an issue.
The coil pack has white numbers painted on it, leaving me to believe that it was replaced by a salvage yard unit at some point. I’ve only had the car three months.