Even with special paint the car should have gotten the stripes unless you have docs to prove otherwise. I have never seen a Carolina Blue Camaro that was an SS that didn't have the stripes no matter what year.
The car above is an original RS/SS 396/325hp with a TH400, ps, pdb, D80, console, and the ZL2 air induction hood. As of 15 years ago it still had 90% of its original paint with only the vinyl top being removed, and someone "touching up" the small scratches with Testors model car spray paint to keep it from rusting. The owner that has it now tried to start restoring it about 10 years ago but gave up. Instead he installed another big block of unreal horsepower so he could have a "hot rod" play toy. One night while traveling down a back road he decided to see what it could do....his reflexes were not as quick as those of that big block. He got the car all crossed up and wrapped the left front fender around a small tree. So much for the original paint front fender! Luckily he did not have the original ZL2 hood on the car and that may have kept the damage from being worse than what it was. The driver's fender & headlamp assy, inner fender, grill, header panel, and lower valance were all that needed to be replaced. He didn't even bend the bumper! This car has/had its original D90 stripes on it along with the original fender pinstriping. The stripes did not go down onto the lower fender extension as they did on some earlier cars. Here is a picture of the firewall showing the crayon marking for "special paint", along with picture of the passenger fender. Look closely and you will see the factory pin striping. This car really needs to be restored, but I don't see it ever happening anytime in the near future as the owner will not spend the money to do it right..................RatPack...................