I was scanning an auto-related subreddit on Reddit, and I was shocked to find that there are significant shortages of maintenance/repair products for certain cars, oddly enough, NEWER cars. People “in the trenches” were reporting that some dealers have had to give out their loaners and even some used cars for warranty car owners where the parts might not be available until significantly into next year. They park those cars “out back”, no room in the shop. For older cars, the aftermarket or reman parts can fill in (some dealers have had their policies modified by manufacturers) to allow reman or non-OE parts to be used in service work. Of course, you have to HAVE reman or non-OE parts available - and many newer cars don’t have those yet. You might be able to get a 10 year old car repaired more easily than a six month old car for this reason.
On the trucking side, some fleet owners are parking or even cannibalizing trucks to keep other trucks running. If you are an owner operator and can’t get your truck fixed, you are now effectively unemployed, just when you could be cleaning up, and I don’t know if you can get unemployment benefits. Maybe independent owner operators have business insurance.