Speed trap / School bus violation (stop when red lights flash) / DUI checkpoint by C.H.P. parked at L.A. County Street Maintenance Yard @ 175th St. East. Drivers “flying” down the “big 2 mile hill” passing Saddleback Butte State Park on East Ave. J . Caution Usual trap times seem to be Mon – Thurs 01:00am – 03:00am, 06:00am – 10:30am, 05:00pm – 07:30pm. Fri – Sun & holidays round the clock { 34.691130, -117.819111 }