I stayed here too. There was a parking enforcement guy in a car with lights on but I just stayed to myself and it was fine. Really quiet. I felt safe. I have a Toyota van. There were a lot of signs that said only passenger vehicles. Thanks so much for posting this!
Me and Wifey stayed here for a night... its was great, pretty quiet and close to universal studios. Theres signs that you can park for 72 hrs max and its $3 for 24hrs. There was other Van's here and even a truck with a camping tent in the back. We felt save 👍