# Waymo fleet gridlocks San Francisco Presidio after July 4 fireworks; one robotaxi drove over lit firework with passengers inside revision history

Append-only Arc G field-change log. Forward-only honesty: events accrue from Arc G adoption.

Incident: [Waymo fleet gridlocks San Francisco Presidio after July 4 fireworks; one robotaxi drove over lit firework with passengers inside](/incidents/traffic-disruption-2026-07-04-waymo.md)

_No events on file. Arc G is forward-only; the recorded event log accrues from Arc G adoption. For the current state of this incident, see the incident page._

## Forward-only note

Arc G is forward-only. The event log accrues from the Arc G adoption point. Fields with no events post-baseline equal the current cached value and are not independently verified at any prior date.

_Canonical URL: /incidents/traffic-disruption-2026-07-04-waymo/history. REST: /v1/incidents/35cf5215-bf52-4d8d-a190-59e2af22a833/history. HTML: [/incidents/traffic-disruption-2026-07-04-waymo/history](/incidents/traffic-disruption-2026-07-04-waymo/history)._