Logistics are really what separates the men from the boys, so to speak.
In your scenario, the odds were already against you.
She's staying at a coworker's house, they have something to do the next morning, and they were tired...
I would not even try to pull a set with those logistics, I'd get a phone number and go try to find another girl with better logistics.
The Magic logistics gathering questions are:
What's on the agenda for later?- This is the equivalent of "wanna fuck?" in modern barspeak. Plus it lets you seed the pull for later. I use this in the first 10 minutes EVERYTIME.
Did you guys meet here or come together?- You have to find out what the travel situation is. Ideally they met at the venue and the girl you're interested in drove herself.
Do you have work tomorrow?- Let's you find out how late she can reasonably stay up.
In your specific situation Steve, you would want to use Captain Jack (www.Masssexualframing.com)'s classic line,
" You guys are leaving already? I'm so not ready for my night to end."
Then I would have asked the girls to drive me to my car and directed them out of the bar's parking lot towards my place. You never want to go to a girl's place if you can avoid it.
Hope that helps,
Til next time,