I agree, I call shenanigans on Darryl getting caught like that.
All in all, I think that this was one of the more contrived episodes. I'm also beginning to wonder if Carol's near hysteria is really an act or not.
And holy hell, she was 12.75 klicks (8 miles) away from Alexandria? There is no place that looks even remotely like that in this area -- rolling farm fields, virtually no houses, and hills that are a LOT higher than anything we have around here.