They eventually figured it out and the stage manager called asking if I could bring it over to their theater, and since there were too many volunteers at the WCPA, I was able to leave for the night and bring over my tablet. After I dropped it off and started to drive away, I realized that I didn't have go back to the WCPA, so I headed home, also realizing that I didn't want to go all the way back downtown in three hours just to pick up my tablet (and the till), so I texted them asking them to keep the money and my tablet for tonight and I would get them tomorrow. That was fine with them.