This is getting off-topic, but I am curious, why didn't you go with BART in the first place? If you had an hour to call the taxi company and still arrive in time, presumably, you had more than enough time.
I know there are reasons for not going with public transport, but preferring to take a taxi/uber when a train line can get you there in time maybe has more to say about public transport than about taxis. Well functioning rail is typically one of the most effective and reliable way of getting to an airport, and often much cheaper than taxis.