There's bound to be someone else at Dale Farm going to CTC in the morning. The owner tends to introduce you to each other if he can as he knows people are keen to find someone to go to dinner with etc.
You could walk to CTC at a push; it would only take 10 minutes, but the farmhouse is at the end of a track which could be muddy if it's been raining. Not great if you're in your suit, but if you're really stuck there's bound to be someone at breakfast who'd give you a lift to the road at least.
Good luck.