Nope, because I've checked and the only restriction on limo services is that they can't stop for passengers (what you said is a great example of limo drivers breaking the law). Off course it wouldn't surprise me SF was the only state that has this 1 hour law, even though LA and San Diego don't.

I find it interesting because there is a record of SF not allowing limo services to top for customers, but I can't find any on the one hour restriction. Honestly I think that comment was taken out of context regarding the companies themselves having a one previous hour arrangement policy.