I had something very similar happen in my shop, which I also caught on video.
Two very drunk girls claimed one had slipped and fallen in my shop. Luckily they did it within sight of a camera. What I saw was the one girl actually laying on the floor when my employees were distracted. Both girls yelled out like she had fallen.
I found this on the tape the next morning. When her lawyer called me, I agreed to meet him at his office to show him the tape. After I explained what was on the tape, he never contacted me again, and I never heard from her. He never did actually view the tape, but took my word for it. I still have that tape.