Although threatened a few times I never did get smacked down myself. Whew! Whittier cops were rough-n-tough in the 70's when I was going to college there. I had the "yes sir, no sir" thing down (survival instinct, not coward - LOL ;-). Back then, we were cutting our teeth on Turnbull Canyon, but never got caught. It was the Whittier Blvd action and drag racing that nearly landed me in a heap of trouble thanks to a very short lived acquaintance with some drag racers and blvd posers. It was the twisties that beckened me anyway.
A couple years later, when I got my SCCA historied TR6 we were specializing in the 110 Pasadena Fwy thanks to some guys that I met while working the sales counter for an Aeroquip shop. They were freeway stormin' racers that were buying hose to plumb their machines and telling me about lighting kill switches and extended WOT runs on a variety of freeways after midnight. It must've been a short time later that I learned about Decker Cyn, having been warned to avoid Mulholland as too crazy of a scene.
It wasn't long before my TR6 melted down and I couldn't afford to fix it & had to sell it. :-(
That ended things for a couple more years until 1984 when I bought my 911 and it was back to all the old roads... Decker, 110, Turnbull, Ortega Hwy. But, then the POC took my heart and soul and that's all she wrote. Other than a few Club runs (ala Solvang Stomp type stuff) it's been race tracks for me and my 911.
http://www.youtube.com/user/pdqcarrera
Bummer or blessing (?) we didn't have incar cameras "back in the day' !!