Even though they do allow you back up with a same-day receipt (at least I'm 90% sure they do)... we like to plan our meal around it.
We did this for Christmas Eve one year and continue to do so at Narcoossee's.
At Cali, our server timed our meal around the fireworks. I think we had a 7:30pm reservation. We were seated, ordered some appetizers and drinks, then our entrees. We finished our entrees around 8:30-8:40 and our server took our dessert order. He instructed us to take our time and go outside when we were ready. We went outside and watched (at the time) Holiday Wishes. When we came back in, our table was clean, coffee was being poured, and our desserts were being delivered.
I'd keep a few things in mind:
1) We once booked a later ADR for Narcoossee's. They don't seat you within a certain timeframe around the fireworks, so you may be waiting.
2) The times can change. They most likely won't, but I think it's 9pm for fireworks during Xmas week.
3) On NYE it's a prix fixe menu and it costs like $250. You'll wanna choose another date.
4) If you can't get Cali Grill, consider Narcoossee's. It's a different view, but still gorgeous.