Gig103- We registered our S in early March of 2014. We went to the AAA office in Mesa to avoid the DMV lines. Took about 10 minutes because we were the first Tesla that the AAA office had handled. We paid a tax (I forget the amount), and licensed for two years with a custom plate. The assistant commented that the fee was $36 plus $25 for the custom plate, but "the registration would never go below $5 per year"... We live in Phoenix, but did not consider there are differential tax rates between the cities. In the first quarter of 2015 we got a tax bill from the city for the difference. So, the short answer to your question- it can take a while for the localities to catch up.
2014 Red 85, 56500 miles
2014 Red 85, 56500 miles