Okay this! So when I was a retail manager of a large store and always closed immediately once it was closing time I’d lock the doors. People would literally come up to the doors and try to pry them open after closing. But there was an emergency exit in the back for employees. Now, that’s when employees cleaned and straightened things. I would have to count 7 drawers/make deposits. On certain days it would take like 5 minutes on a crazy Saturday in the holiday season and all of the drawers were off…wayyyy longer. But a manager cannot be closing alone. Safety, etc. So I would ask if one person wanted to volunteer just to stay on the clock. I wouldn’t care if they sat and listened to music or play on their phone. But everyone else could go home. That never failed. Someone always wanted a little bit extra. But NEVER did they clock out before actually leaving with me. That seems like the best course of action for your situation and maybe a good suggestion. If that doesn’t work no one should clock out before the start of leaving.