We choose Ramon Rd. as the start rather than the Museum trailhead because I had previously done this hike years ago from Ramon Rd. While there are some houses nearby, the end of Ramon Rd. is somewhat isolated (no houses look directly on the parking sites). The spots are lit with a street light. We left our car there at 5:30am, and did net get back to it until 9:30pm, to return to broken glass, items stolen from our car, and wallets gone (even though hidden). Was dumb for us to leave any valuables in the car. Just sad you cannot trust society.
So, I would not leave your car parked at this site, or, I would park near one of the homes and walk to the trailhead. Bummer
