According to that article some schools have closed over the propane shortage.
Additionally, US DOT has waived rules for truck drivers carrying propane that they can drive as many hours as possible.
Article [updated Reuters]:
U.S. propane shortage hits millions during brutal freeze
Quote from article about relaxation of rules for truckers:
The U.S. Department of Transportation has issued emergency orders suspending the limits on the amount of time truck drivers can spend on the road for 10 Midwestern states and 12 Northeastern states, a rare regional order.
Thanks!