I can't believe doing this rarely would cause any problems. If you make a habit of it, I would think it would be a problem.

Think of this - if your inbound to SFO is late due to "weather", you'd miss your connection out of SFO anyhow, and if it's "weather" the airline wouldn't have any responsibility to accomodate you, except to get you out whenever they could. Pray your inbound is slightly late, and you'd have a great argument anyhow.