How flexible is the 15 min grace period on reservations! Like what if your 20 min late, will the reservation still hold?

If you call a head and let them know you are going to be late, I see no problem

So if you have to wait go check out light at Dilworth plaza sweat side of city hall I love that place ocean prime

I would suggest to call. Is better to let them know. Enjoy ocean prime.

Yes early but later in the night it gets crazy....I would make sure to be on time or call ahead.

Yes

Yes but you should call ahead as previously stated

From my understanding yes, but i would suggest calling ahead and letting them know that you will be arriving later than your reservation