At 20:53- The "unconscious" meter maid opens and closes her mouth.
At the very end of the episode, when the ambulance door closes, we see an orange balloon fly off. If you look closely, you can see another balloon in the distance, most likely from a previous take.
When Hotchner, Morgan, and the LA detective arrive at the bank, just after the unsub takes off on a motorcycle, they find the meter maid unconscious on the ground. Hotchner radios the others that the unsub is headed their way. The LA detective asks Hotchner if he knows what the odds are to catch up to a motorcycle in a car in LA. Nobody had told the detective or Hotchner that the unsub had fled on a motorcycle and Hotchner did not tell the others that the unsub was on a motorcycle. Yet the others from his team (Greenway, Gideon, and another LA officer in an SUV) point at and start chasing the unsub on the motorcycle as if they had been told.
At 5:19 and 5:21, a mic can be seen attached to (Reid) Matthew's shirt, not quite covered by his tie. Before that, at 5:17, however, there is no mic visible.
When the team is delivering the profile, Hotch says that the suspect likely went to jail between the ages 18 and 22, for a period of 5 to 10 years. Elle chimes in and says that the suspect would therefore now be between the ages of 23 and 35. The oldest the suspect can be, following their estimate of age at incarceration, is 32.