I drive on the street up here all the time but most of the time it is to get to the forest from my house.
FYI, I just registered a quad for it's first time today and I verified with the lady at DMV that it is the same procedure as it has been. She said that they are trying to make the OHV sticker easier to get like a fishing license. So in the future, you might be able to get the OHV sticker at your local Walmart, Big 5 etc. etc.. But for now, everything is the same as it was before. Buy the OHV sticker and get an RV plate or buy the OHV sticker and MC plate if street legal.