Digging on helecopters in LA, you will find ChiFi, Kabbalah, Shifty, Brad Sherman ALL make monitoring if helecopter traffic a pet project for them in California- for at least the last 12 years. Easy digs. They had a separate agency created with helos required to register personal data with it due to "noise" restrictions. So, trafficking… yeah. Also, HOTELS required to have landing pads iirc per a fire requirement. Do board search for helecopter and old digs are there -IF you are digging.
Super V?