Edward notes that the parking garage is laid out like every other garage- they turn in a circle to the upper level. There is not much to observe in the driving lane.
As Edward and Conner look around their level, Edward notes that there are only two other cars on this level. One is parked in the corner, an unassuming brown sedan that is ten years old. The second is a black sedan, parked in the parking spot closest to the elevator. There is a camera pointed at the waiting area in front of the elevators. There is a second camera pointed over the overall parking area, yet there are likely many blind spots.
Describe what Conner and Edward do. Where are they looking? What are they looking for? What is their goal here?
If you want to determine what sort of video camera is being used, make another perception check.