Nope...not buying it.Because neegan has his shit together and Rick had no clue what he was up against. In fact, they said as much on the talking dead. They said this episode was to show how much more together neegan was and to bring about an humbling of Rick's character.
It was dark....they could have been miles from where they were.
Nope, Negan had to be informed on their location and there is only one way he was getting that information.