I would absolutely do as an ealier poster suggested and send a photo to the regional manager...not to demand an additional refund, but to let them know of this potential hazzard - especially if you can also add a picure.
I also would call Patagonia or the place where you bought the item. Many companies are indeed be willing to replace an item that was damaged so quickly. A few companies will do nothing, while others are amazing. A good company knows the value of a repeat customer. That's a big part of why customers choose name brand items-not because the fabrics are worth so much more, but because the company stands by their merchandise. If a company treats me well, they most certainly win my loyalty. Stand by your product, and you win my loyalty. Over time, the company will far moe from repeat customers, than the few dollars they lose replacing a faulty item. (Disney is a great example. They have gotten LOTS of money from my extended family over the years, not because our vacations have been problem free, but because they make an reasonable effort to FIX their mistakes. I mean problems like leaky faucets, broken merchandise. That knowledge helps me enjoy my vacation, and tust me, disney has benefitted royally from our loyalty. )
If that doesn't work....I would also consider making the effort to consult with a talented tailor. Many dry cleaners offer such services. A few years ago, I had a bridesmaid dress disaster. Granted, bridesmaid dresses are made to be altered, but the fit was so bad the dress practically had to be remade. I was amazed by how quickly she was able to complete the work, and how amazing the dress looked afterward. She knew just where to make the alterations to make the dress fit properly.