A coffee shop that does that needs to be purged and cleansed with fire and the staff "Reeducated"!
Talk about Doc being in a double-bind.
Since Doc didn't meet Cara at the coffee shop on the prior visit, I suspect that it's been some time since the crew were there. I can't see Cara working in a dump, so either the shop is under 'new management' and they've improved their service, or perhaps Cara has been responsible for straightening things out a little since starting work there. I've known a few small businesses that have gained one new employee and suddenly massively improved the standard of service because that employee has decided not to work in a ratty environment, and rather than leave, has whipped the place into an acceptable level of quality.
But perhaps if we wait a while, the facts will all come out in the wash..... ODKFS.