Don't drive on stock, flat tire
 

Just an FYI, even very very short distances messes up the tire. I noticed the left rear was flat when I got to the driveway and backed into the garage, took the tire to les schwab and was told the tire was too damaged to use. Anyway, I was quoted $95 for a new dunlop tire and $30 for installation at honda, to which I said "OK" to the honda guy and walked out. So if your tire is flat, don't drive on it at all. Shoot, for how bad the tire looks for me driving 500 ft at under 5 MPH, don't even look at the stock dunlop tires too bad or they will fall apart. Anyway, I am off to look for other stuff to sell so I can afford some Michelin tires from Costco.

how did your tire go flat?

It's not just Dunlop tires. Over the last few years tire repairs have gotten real paticular. If there are any signs of damage most reputable shops won't touch it. Not that they couldn't repair the tire but during inflation the tire would most likely give out......

Honestly, it looks like I backed onto a nail going out of the garage. My driveway is an L shape with the longer part being the main driveway and the garage being at the end of the shorter part.

It wasn't just minor damage from being run on, the bead of the tire was almost split in two in a four or five inch spot.

The nail could have been in the tire for days before you noticed it. So you could have been driving on lower air pressure for a few days. It is hard to tell when a tire is even 5 psi low. If you run a tire flat it will damage the bead. You are running the complete weight of the car on the bead of the tire. If I can help with the new tires give me a call. I am pretty sure I can get you a better price than Cosco.