Joke's on the rental agency, it went out of business centuries ago.
Jack signed the papers. Speedy Jack's Starship Rental was now out of business. It was a sad day to be sure, especially after Jack's father, Jack Sr. put so much energy into starting up the rental agency. It seemed like a good idea at the time, but it takes a starship a long time to be returned. Time dilation and all. The lot was almost always empty, except when Jack was able to scrape enough together to buy another starship he would probably never see again. For all he knew, the skies were littered with broken Speedy Jack's starships, perhaps due to colliding with micrometeorites at .99c, perhaps they were intercepted. Perhaps there was no reason to get back to Earth.
The divorce settlement didn't help much either. Speedy Jane blasted off with a newer model, a warp engineer to boot. There was no future in sublight ship rentals. It was a good thing that Jack Sr never lived to see this day.
There was only one last thing to do.
Jack got onto the last starship on the lot and fired it up. He took one last look at the photo of him and the kids.
From an observer on Earth, the trip took a little over 8 minutes, but 8 minutes is but a brief moment at relativistic speeds.
Solar flare activity was reported that day, which was odd, as the Sun was at solar minimum.