Really, there is a contingent on HN that seems utterly divorced from reality. The trucking industry as a whole profits ~30B annually in the United States. That is an absolutely insane number of miles hauled. Many of these operations are barely hanging on and whether or not 16 trucking companies going bankrupt in a month due to fuel prices is normal or not I couldn't tell you but on the off chance that it is this might not be the time to experiment with what other things you could do to that industry.
For contrast: Amazon profits number in the hundreds of billions (300B+ iirc) and that is just one company vs a whole industry.
Effectively that means that they are making pennies of profit per mile driven and that any kind of destabilization of that industry will instantly translate into either shortages or further price increases.
Maybe you're right and putting this off is the right decision. If we get automated trucking and those thousands of trucking companies are replaced with a handful of tech companies it might be easier to implement reforms.
When a government collects taxes they have to think how to invest that money to maximize gdp growth. Subsidizing road infrastructure is a pretty good use of those funds IMO, though admittedly I’m probably biased as a transportation engineer.
CA uses fuel taxes to fund road infrastructure, which isn’t the worst approach… the heaviest users (‘heavy’ both figuratively and literally) invariably pay the largest share, although EVs are messing up that equation.
But the point is that the heaviest users(semitrucks) cause almost all of the damage (literally >99%) but don't pay for most of the maintenance. This represents a subsidy of trucking companies. They cause damage that they don't pay for. This is an example of the economic concept of an externality, which is bad and should be eliminated.
Then, its upto them to figure out more efficient means of logistics. Companies that can figure this out will survive in the marketplace. Competition weeds out inefficient companies.
None of the things you say happened when tariffs changed. All companies were fine and made more profits. The economy didn't collapse. (Source: See stock market and profits of companies)