Can you cope without your cellular phone?

I had a little party last night. The last time I saw my phone I was texting my S.o. Then my cell was gone. I know my drunkest buddy of the night accidentally took it home (he didn’t drive). Anyways, I was supposed to text my S.o. to tell him good night. So he wouldn’t worry and stuff. Well I realized I don’t know his number off hand. It’s in my phone! Not having my phone sucks. How would you cope?