Early Sunday morning I went to the Metrorail station downtown and my pass wouldn't work. Having no money, no credit card and a non-working pass, I had to slide my suitcase under the barriers and crawl underneath myself to catch the next train! At the airport station I explained to the guard that my 24-hour pass wouldn't work and that's when I learned I had purchased a Day Pass that expired at 2AM, not a 24-hour pass! He graciously scanned me out of the transit area where I could then enter the airport and fly home using my passport which I still had with me from the Asia trip!
Big thanks to Jonathan at Kill Your Idol / Lost Weekends for mailing my stuff back to me!