Starbucks Mishap

I was just poisoned by Starbucks:

I went there during my usual Saturday morning town stroll, and decided that in addition to my standard Grande Hazelnut Latte, that I would try one of their new breakfast sandwiches, as it might be a nice change from the egg on English muffin that I normally get at the bagel place.

Well, I ordered the Spinach and Feta with Roasted Tomato Wrap, as that is the only item in the category that is meatless. You see, I have been a Vegetarian since I was 14, so that makes me totally meat free for over 21 years now.

They gave me my sandwich and drink, after messing up my order a little bit on the drink (evidently the H was misinterpreted as an A so they made an almond latte the first time around), and I headed home, as it had started to rain.

I got home, settled in with the mail and opened the bag with my sandwich and happily started to chomp away. Something wasn't right....it tasted kind of funny.

I took another bite, figuring it was just in my head. It still tasted very strange. I looked down into the wrap and saw that there was something pink inside, and it wasn't a tomato. It was bacon. I had been given an avocado, egg, and turkey bacon wrap instead.

I spit out what was in my mouth, drank a bunch of water, and am now sitting here with the wrap in its bag, my hands shaking and some terribly awesome stomach cramps.

What would you do next?

Do I take it back and complain? Do I just chalk it up to experience and never eat anything that I can't see the insides of again? What do I do?