Ran outside when it buzzed makes it sound like a fire drill. You must have neighbors thinking you're crazy, bolting out at all hours. And all for a phone pic on a tiny tripod? I bet the shot is just a blurry dot. Modern astronomy is basically being a slave to app notifications. But hey, if it works, it works.
Holding your phone steady against a fence post works better than a flimsy tripod sometimes. I've gotten sharper ISS trails that way when I forgot my real gear. What app did you end up using for the timing?