Ending a relationship with seeds is difficult because those suckers will only die when you want them to grow. Also, they stalk you for years.

Sun and shade mix is going to include rye, fescue, and bluegrass, in all likelihood. Unwatered, the seed will happily sit and wait, dormant, until it gets wet, then germinate if it can. And your climate isn't exactly what I'd call "harsh," so survival probabilities, even for spring seedings, are far better than they would be here in Pennsylvania (where I'd tell you to ignore what you did, wait for fall, and reseed with the right stuff).

The mismatch in color and growth rates probably isn't going to be bad for the casual homeowner, so #1 probably isn't a horrible choice for you. It's probably worth a shot trying it.

If you hate it, you can always hit it with RoundUp later in the season and redo this at the correct time in August with the correct fescue seed. By that time, hopefully this whole mess will be behind us and you can get the landscaper to do it--or you'll be so used to doing it yourself that you find you enjoy it.

And you probably won't hate it anyway.

Even if you don't hate it, moving into summer means that survival probabilities, even in cooler, damper environments, aren't exactly what I'd call perfect. Some fall touch-up is likely going to be required.

Nothing is writ in stone is what I'm saying here. Not even in a showcase lawn.

For watering, keep it damp. Always. So water twice a day even in your climate--and for longer than you think to assure that the bluegrasses sprout (they're self-repairing and the cultivars chosen in the Sun/Shade mixes are chosen to match the fescue/rye cultivars to begin with). Call it 3 weeks or so. Then back off slowly to give the grass time to adjust--you can certainly go to watering 3 times weekly in your climate immediately, I should think, but listen to a native if they contradict me. You could get away with that here in PA in May weather, so I figure it should work in San Fran.

Water through the summer if dry, at least weekly and if you like the grass. If you don't, stop watering it and let it die out on its own as much as it's going to. RoundUp or use another grass killer in July to get rid of it if you hate it, and repair it in August and restart the watering process as above at that point with fescue seed.

Alright, so I decided to just pull out the ol' Black and Decker and vacuum my lawn. I think my family thinks I'm crazy, and well, let me repeat what I just wrote ..."vacuum my lawn" :-)

Anyway, I just don't want to learn to fight a different battle, so this felt like the easiest since I hadn't gotten them wet yet. Was pretty easy, too, except that the battery doesn't last that long so I had to recharge a couple of times.

Can I say that again? I vacuumed my lawn (insert crazy emoji.)

There's a sentence you don't read every day. Don't worry, I do the same sort of thing regularly. All of us around here do.

Whatever works, works, and it goes no further than us. :-)