What charges could I face for giving the police someone else's name for an OWI/OWI?

I was sexually attacked at a party, so I begged for someone to take me home, finally someone agreed with the condition I drove there. So I did, made it a block and was pulled over. I freaked out because I didn't have a license so I gave someone else's. My picture, and palm prints were taken but not my finger prints. I was bonded out. Now wondering what I should do because I have to be in court on in a week.