So, here I am at a store, trying to buy something. Unfortunately, since the store seemingly is renovating, things are all over the place. Out of the corner of my eye I spot a customer service table, and decide, "hey, let's ask where \***\ is". I walk over and see the lady working there. She seems to be on her phone. "Ahem, excuse me, but do you happen to know where \***\ is?". She doesn't even look up. 

I thought she might not have heard me, so I tap the desk. She looks up and asks "sorry, what?". I repeat the question, and she hands me what looks to be a brochure and tells me to read it. 

Now keep in mind, this brochure was of the mall, not the store itself. The mall contained many different stores and even a dining area, so obviously this map and list wasn't going to help me. So I ask again, "would you happen to know where \***\ is?".

She looks up, visibility annoyed, and says, read the brochure. I tell her this is for the mall, she says "just read it, you'll see what you want".

At this point, I'm quite annoyed, and frankly, really not happy with her "service". I immediately call her out on it, and asked to see her manager. She immediately told me that I've been rude to her, which is utterly ridiculous. 

At this point I just decide to leave, arguing with her doesn't get me anywhere, her manager doesn't show up, and we've caused a small scene. 

My question is, did I act out of line? Was I just supposed to behave/respond in a better way?