Only Kalifornia transplants ride bikes?
If you're going to have to use a car a lot of the year, then use a car every day.
Some private company can build a facility for people who want to ride bikes that is isolated from cars in order to be safer and pay for itself.
It's these seemingly "practical" measures like bike paths used by some, but paid for by everyone that creeps into California-style socialism.
If you can prevent bike paths then you might be able to make Idaho less desirable to Californians and they will go somewhere else.
If you're of a mindset that bike paths are a great idea that should be funded by everyone, then maybe you have already been Californicated. When I moved to Colorado back in the 90's I noticed that most cities had publicly funded gyms. This was at a time when there were numerous private companies providing a wide range of gyms such as 24hr Fitness, Bally's, Sports Connection, etc. There were also covenant communities, gun ranges being sold off to prop up more cookie cutter houses, small towns with dirt roads being paved, new urban communities being built where once there were farms. This is not the Colorado I expected when I moved there. The supposed fierce independence and conservatism was being transformed into collectivism one "practical" project at a time.
The same fate awaits Idaho.