Damn!
I remember when you posted in my thread about moving to AZ about being out here an seeing a Semi blow a tire right next to you.

I was on my way home from work today, running about 70mph on R60(Superstition freeway) and threw a belt on my left rear tire while in the middle lane of a 7 lane highway in Mesa.
I knew the tires were getting due, but I think constant contact with asphalt that is in the 150+ degree range probably helped too.
I got off the Highway, and limped her home.
No tire stores around here open tomorrow, so I guess I put the spare on and wait a few days until I have time.
That's a setback I wasn't planning on.
But, It could have been much worse, and I have a wife that counts on me coming home every day.