Amazon Zoox robotaxi, a Google Waymo car, and a Tesla Cybercab became trapped in a viral face-to-face standoff on a narrow city street in 🇺🇸Austin, Texas, showcasing a classic real-world artificial intelligence deadlock. The vehicles met head-on on a narrow side street constricted by cars parked on both sides. Because each company programs its vehicles with proprietary decision-making algorithms, the vehicles struggled to establish right-of-way protocol without a human driver to initiate a courtesy gesture or negotiate positioning. Eyewitnesses noted that the Waymo continued to creep aggressively forward instead of yielding. Meanwhile, the Tesla Cybercab - which runs entirely unsupervised on vision-based software without a steering wheel or pedals - was seen reversing to clear space for the others. Observers also pointed out that Zoox’s unique bidirectional carriage design makes native reversing straightforward, though both it and the Waymo remained locked in position for several minutes before traffic could clear. This event highlights a prominent operational barrier for autonomous fleets: multi-platform coordination. While current robotaxis excel at perception and safety when interacting with fixed obstacles or rule-following humans, they struggle when they encounter another AI entity governed by a completely different set of non-standardized routing protocols. Similar standoffs between Zoox and Waymo vehicles have previously been documented in San Francisco, indicating that “algorithm clashes” are becoming a frequent consequence of multi-fleet urban deployments. Can the robotaxi companies program “courtesy gestures” as part of their algorithms?