I emailed a guy at the So Cal Rocket Assoc. and this is his reply: "I can tell you that a model rocket (no bigger than 2 x G motors) could not reach 6000 ft unless it was very small in weight and drag to achieve maximum altitude. In addition, there are no legal launch sites anywhere near the takeoff path from LAX. (Same for the landing glide path)."
Glad to hear you could verify the opinions of members in the early hours of this thread.
Now what is your opinion?