You can also exit to I-10 via Graham Pass, which takes you up to a short east-bound stretch on Chuckwalla Road to an entrance to I-10. I don't know if it's actually labeled Graham Pass at the point where the road intersects the Bradshaw; google maps shows it as Niland Road then running into Graham Pass Road. Then turn right (east) at Chuckwalla and parallel I-10 for short bit and you'll get to a freeway entrance. It's been several years, but I remember Graham Pass as being quite scenic.
Have a great time everyone. I thought I might be able to make it, but it does not look like it after all.
By the way, happy birthday in advance to Steve and Jake.