CBS says it was an errant fire extinguisher on board a Flyaway bus.
The Press-Telegram fingers a “clumsy bus traveler” who bumped the extinguisher with his bag.
And KTLA reports the incident has backed up traffic for “miles.”
Return to your homes, folks. Nothing to see here. You may resume ruminating over whether McCain/Palin or Obama/Biden would have handled such an incident with the appropriate gravitas.