The E21 Legion does our own Rally unofficially and we always have a great time. We had about 40 cars in our rally and stopped in Solvang for a delicious BBQ. I must have seen literally 25 CHP's on bikes. My 323i (driven by another member) was pulled over to check the registration (we were waiting at a stop light) And another was pulled over for taking pictures out the rear of a E30 cabrio. The CHP presence was intense and I almost felt intimidated, as a few times they were following us. We stuck to the speed limit 99% of the time though and they didn't really have anything on us.
They were all over our route but faded out towards Solvang.