Not to be cynical, but this is perfect publicity for Delphi Automotive. There appears to be no third-party confirmation of the incident, solely the say-so of the Delphi executive.
It would seem to me (given the low density of self-driving cars and their excellent track record) that the odds of Delphi wanting get in the news and bash a competitor at the same time is greater than the odds of two self-driving cars happening to cross paths and causing a "near-miss".