License Plate 4JH9588 in California

Blocked Driveway & Illegal Parking at 918 Plymouth Ave Ingleside. Jet skis with license plate CA 4JH9588 Boat parked on street for more than 72 hours. no license plate. another boat parked across street also no license plate. jet skis also parked. large storage container on sidewalk for months. hard for neighboring houses to back out of their driveways with boats and jetskis obstructing view of oncoming traffic