Wow, that sounds wonderful!

So you won't have your bikes when you go to the airport? In that case it might even be worth it to take a cab if there are four of you. Also, some hotels have airport shuttles. Just to broaden your options.

Also, are you on a tight budget? Staying in the touristy area of SF can get a bit pricey. That might depend a bit on the time of year.

And when do you plan to be in SF? Perhaps you can prevail upon one of your local TE buddies (hello) to store your boxes whilst you galvant down the coast. It might cost you a beer though.