Given the fact that she called you "bud", your romantic chances with her are absolute zero, but she's not friend-zoning you, either. She's treating you like a real friend, or a respected acquaintance at least. Your best bet is to respond in kind, and put romantic pursuit on the back burner. After all, good friends who respect you, even if they're casual friends, are few and far between, especially for us aspies.
The friend zone, as we know it, implies some sort of misleading or taking advantage of someone, with the friendship being not genuine. Your lady friend isn't acting anything like that; she's being honest and friendly to you. (Usually, the woman friend-zones the man, but the reverse can happen too.)