The camera placement at the S curve in CR is the exact point people need to slow down.They just reduce speeds up to the point you go thru them.
I dont know how many times i see people slowing down to the speed limit right before the 380 cams through CR, speed back up once they are through until the next one.
Also, i believe semi’s dont get ticketed either through CR, so if a semi goes 67 through a speed camera in a 55 zone, no big deal for them