Should I give it a shot with this girl?

I work with a girl who is awesome. We were in the same high school class and we graduated last week. I've grown to really like her and everything about her is great. I get the vibe that she is into me as well. It sucks because she is moving away to go to her college in a couple days. If I let her know how I feel before she leaves, it won't really accomplish anything because she won't be around anyways. What should I do about this situation?