Jeff at the Braves Game: How Long Do You Have to Wait?

Jeff got invited to attend the Braves game yesterday by co-worker, Ron, but he was too late!

October 9, 2018

Jeff responded 11 minutes after Ron texted him, but Ron had already picked someone else! What is the expiration on an invitation to attend a same-day event? How long is someone allowed to wait until they can move on?