They had argued that they were unwilling to order drivers to make shipments because of fear for their safety.
The second threat, the officers said, comes from criminals, some of whom masquerade as police officers and order drivers to pull over.
But though there were signs that small numbers of oil trucks were carrying fuel from depots late tonight and though there has been no violence, many companies seemed reluctant to order drivers to cross the protesters' informal picket lines.
The police sometimes draw their guns and order drivers in vehicles similar to the two that witnesses have described to come out with their hands up and prove they are not the sniper, an official said today.
As for DeliveryHub, in addition to providing the customer with increased visibility into the status of their order, drivers can use the system to map the most efficient route and restaurant owners can also use the system to assign orders to drivers and track their locations.
Climate models differ considerably in the spatial pattern of their projections, but these changes are a first-order driver of biome structure.
A judge, still wearing his robes, wandered through traffic, ordering drivers to put on their seat belts.
The city itself even got into the spirit, ordering drivers to avoid honking, which might disturb students, and, in some places, closing down Internet cafes in the days before, to encourage studying.
There were no major traffic tie-ups on the local roads, only minor delays, as State Police troopers ordered drivers to pull over briefly while Mr. Cheney's motorcade rolled by.
Lawson later in the morning described "ghost orders," which are orders that drivers would never receive but would appear as orders drivers received and rejected.
Gov. Jan Brewer of Arizona, a Republican, has issued an executive order denying driver's licenses and public benefits to young immigrants who are granted relief from deportation.
