Revealing mistake: When April O'Neil first tries to take pictures of the foot clan activity at the docks, almost every time they show her phone, the screen is black. In fact, when she finally tries to get the shot of the Vigilante we see a clear as day reflection of herself on the screen.
Revealing mistake: At the end of the movie, the Turtles accidentally destroy Vernon's new car. If you look closely at one of the last shots of the movie where you can see the car now upside down, you can see the car doesn't have an engine, presumably to make it easier to flip.
Revealing mistake: When April first takes the photograph of the symbol, she actually has the camera in selfie mode, you can see her face on the phone.
Answer: She was trying to send them away to save them from the experiments. The first place to search if some experimental animals get lost are the houses of the people that are involved.
Anastasios Anastasatos