I had a similar heartbreaker last Halloween... I was in Florida for a conference for 5 days and REALLY wanted to rent a car to head up there, but it just wasn't to be.
As a funny sidenote, while I was down there, I called David on the phone to tell him how close I was... he didn't pick up so I closed my flip phone. 5 hours later I opened my phone and that call was STILL ACTIVE. With the roaming charge it was almost $300! Fortunately after some panicked calls, they removed it from my bill.