Glad you found a size that fits. Buying pants definitely does suck.
Just wanted to mention for future shopping trips that people don't usually care if there's a girl in the men's department. I've been buying men's clothes since I was a little kid and nobody's ever given me a hard time about it. I do usually take the pants back to the women's dressing rooms to try 'em on, though. Honestly, I've felt more uncomfortable when I've had to buy women's clothes. I'm usually rocking the baseball cap/t-shirt/shorts combo and looking like a 14-year-old boy when I shop.