hugow,
from what I can tell you did everything right and it might just have been that someone had used the false time constraint recently on her or that she has read The Game in the past.
This being said, I believe that you actually can turn the entire scenario around in your favor. She called you out on "being a player" which you neither affirmed nor denied- actually her entire defense being based upon you being a player. Utilize that to your advantage. She judged you prematurely and was "mean" to you
Ask her out again for coffee when you see her, give her just a second to think, and add "or are you going to accuse me again of being a player without even bothering to get to know me?" If you do that, you basically called her out on being rude, which a) will take her down a little from her HB9 horse, and b) make her look like a bitch if she says no to the coffee again. You should get your coffee with her that way and then you just need to make sure to bring your A-Game and leave anything she could know from The Game at home
Sarge on,
Invictus85