Hmm, yes voters hate hiking fees, but a lot of Californians also hate Trump with a passion - I have a feeling that many will support a hike on vehicles they will themselves never drive, if it's sold as "protecting the environment against Trump."
I'm in Silicon Valley and I see large SUVs and pickup trucks and gas-guzzling performance cars everywhere I look. In the rest of California there are even more SUVs and trucks.
...Vehicles that are currently illegal in California due to stricter emission control? (Unless I'm missing something...)