Get thee to yelp (link here:
www.yelp.com) and research your options. there's plenty of reasonable parking (even overnight), though not sure about in/out privileges, there are surely some garages that will do that.
The Hyatt is infamous for bilking people for parking and overpriced drinks and food, that said, it's a great place to rest your head at night but plenty of better places nearby to grub, drink, etc.
Ah the Hyatt downtown has breathtaking views too, go there at night for a quick drink and cityscape (unless you are afraid of heights, LOL) before heading off somewhere better for dinner!

You're at the Embarcadero? Staff is a bit nicer there than the others. Parking nearby though, hmm, depends how far you want to walk