- Since you have a long commute, I'm guessing that sharing a ride probably isn't realistic.
- Is working from home an option?
- Do you have some vacation days you'd be willing to burn?
- Could you alter your hours a bit so you could work four 10s instead of five 8s? Wouldn't remove the problem, but it would remove the number of days you need transport.
- Could you stay overnight with a friend who lives nearer your work? Of course, by the time you cook dinner as a thank you, you could've rented the car.
- Do you have a relative who doesn't use his or her car on a daily basis? Again, you'd owe some sort of favor.
- I'd just break down and rent a car. I just checked Hertz' website; in my area you could rent a Nissan Versa from them for $126/week ... hmmm, I didn't click through the end, so I'm not completely sure whether that includes taxes and any required fees. Clearly that's more than you spend for your own car, but it's also not out of the question for a last-minute emergency.