Re: Missed a great opportunity. Do I still have a chance?
Sounds like you're good to go. My advice, don't try and plan out the interaction so much though, just let it flow naturally. When you plan out exactly what you expect to happen, and then it doesn't happen that way (which is basically every time) you lose that momentum and it becomes awkward because you're trying to force a situation that isn't happening. Just go in there with the plan to get her number, no specifics, then act in the moment. in my experiences I get better results then when I go in with a specific line or reaction. Good luck.
"Act like you're interested, not like you care."