Thank You Note Post Interview

So I had a huge interview this past Friday, and I want to send a thank you note/email. However I don't have the interviewer's information. I should have asked for a business card, but I completely forgot. I do have a company recruiter's email, but I don't think I should send a personal email to the recruiter. I could send in a thank you note, but during the interview, she mentioned that she was going to make a decision either Monday or Tuesday.

What should I do?

usa jobs
usa jobs resume
usa hotel jobs
usajobs
usa jobs federal government
usa job in ksa
usa jobs
usa jobs login
usa jobs gov
usajobs.gov
www.usajobs.gov
usajobs.com
usajobs
usajobs.gov official