Not that far N, you might want to mapquest the Southern part of the state. I-8 splits from I-10 in Arizona. I-8 continues through the southern part of Cali to San Diego. I-5 around Camp Pendleton and I-15 around Temecula CA have similar CPs. Less BS at the latter two due to the volume of traffic. BTW this is only on the Westbound side of I-8. Although they do interdict eastbound.