Hey guys I'm desperate need of your help and wisdom.

My sister is getting marry tomorrow right outside Orlando, and my original plan was to flight out this morning on DL1462 LAX-MCO already being upgraded. But due to some work schedule snafu I have to attend a meeting at 8:45 in downtown LA...And I know for a fact I won't make that 9:40 am departure. My question to you guys what do you recommend me to do take a flight through ATL or DTW or just wait for the redeye flight LAX-MCO and risk it something might go wrong and just rent a car and drive to the wedding site...And I'm the made of honor...and I have to check a bag with my dress inside...Guys I need your advise and help thanks

Natalie