I am in the same situation as you are. I am an international applicant and going to visit Darden and Johnson in next week. I have not gotten an interview invitation from Tepper yet but I sent them an e-mail and indicated my desire to have an applicant initiated interview when I will be there. However they politely refused my offer

and told me that I could visit the campus and stop by their admissions office and chat with one counselor. It was kinda dissappointment, nevertheless I am glad to try my chance and show my passion to school.
If I were you, I would try my chance and reach out them. We have nothing to lose...Just be open and clearly state your situation and lets see whether it works..
I think you should still make the effort to meet with the Tepper team. You have nothing to lose anyway.
I'm planning to reach out to Stern, just thinking of what to say.