Drive across the border and buy them from neighboring states.
A note, Kali has already made it illegal to even enter the state with any commercial diesel truck that predates some specified year.
Sorry, not a diesel driver so not certain of the cut-off.
I do not see how this is legal, “Full faith and credit”, “Interstate commerce”, etc.
But I understand that the fines are heavy and they are getting away with it.
I also know that 1974 and earlier “Exempt” vehicles command a major premium over post 74 vehicles.
Those who care WILL find a way around this if it actually happens.
The lobotomized will “Work from home”, NOT work at all, or ride the cattle cars to commute.
The mass EV sales will not happen, and if they did other states do not have the extra capacity to bail out Kali to supply the power to charge them.