The summary of the last episode at the beginning shows Penelope being shot in the upper chest. You can see the hole in her jacket on her upper left chest. However, paramedics bandage her a lot lower towards the abdomen Further, later on, there are no marks on her chest/cleavage where the initial shot was shown.
Garcia's glasses are on, then off, then on while being treated by the paramedics.
When Garcia is being prepared for the ambulance, she goes back and forth between having a neck brace and not having one.
When Garcia's date drops her off at her house, Garcia is still dressed up for the date, including red lipstick. Moments later he shoots her; but when the paramedics scoop her up from the pavement she's wearing lip gloss instead of lipstick.
The paramedics would have immediately removed Garcia's glasses when they arrived (to check her pupils).
In the beginning when the paramedics are putting the c-collar they would not lift her head up. They would slide in under her head any movement of her head could result in further injury like paralyzing the person.
They clearly show Garcia's eyes moving as if in REM sleep while the doctors are trying to get her heartbeat back. If your heart is not beating nothing on your body is moving.
Colby's surveillance car has California plates. A surveillance car is not meant to be noticed, an out of state car would draw attention to itself.
When Morgan re-enters Garcia's house after trying to chase the perpetrator, he walks from room to room with his gun drawn. Suddenly he encounters Garcia, who is pointing a pistol at him and is about to shoot him. When Morgan left the house, he had told Garcia to shoot anyone who comes through the door. If he had called out to her when he entered the house or when he entered each room, she would have been warned not to shoot him.