In the last scene of the episode, the kids come into the parent's room and crawl onto their bed. When Riana sits on the bed, she is wrapped in a bed sheet around her shoulders. In between camera takes, the sheet is either wrapped around her shoulders, or completely off her body, especially noticeable during her line regarding the Mexico trip.
While in the office, Murtaugh says his flight leaves in 90 minutes. Any Angeleno knows that if you're not at LAX at least two hours before the plane leaves, your chances of making your flight are extremely slim.
When the gunman is shooting up the strip club Murtaugh shoots him from the side but instead of falling sideways he falls backwards.