After a 500+ mile drive, I pulled into my hotel and by the time I'd come out to collect my luggage, my tire was half flat. It was 7:30 in the evening, and I figured that the best I was going to manage was to fill it with air and hope that it would hold until morning. I went to the nearby Shoreview Exxon, and was surprised to see that their shop was still open. In no time at all, they had the tire repaired, gave me the nail as a souvenir, and declined to charge me! My heroes! Thank you so much!