It would be interesting to know if the recording of RY/crack whore became available between the RY run crew giving their possible excuses to Runner's World and their definitive explanation that they sent later as an email. Kit Fox appears to be the main RW journalist for the story and could be asked the timings of their follow-up email. The posts here would give a good idea of when the recording became available or Asher/garage owner could be definitive.
It does not make sense that this event was not recalled by RY and his team (becoming separated, searching for and using a stranger's phone) when first interviewed, and it suggests to me that it was concocted to fit the follow up video.
On the FB page, definitely before the recording was released, RY does say he thinks he dropped off the pace, but certainly is not definite and asks for footage before and after the RV trundles through. I just think at least one of the team would have remembered and stated that's what happened before the recording was available.