Minneapolis Bridge.. what would you do?

I have a two year old and a 6 month old. I have seen pics from the bridge collapsing of mothers holding their infants and small children. It makes me actually break down in tears to think about being in that situation. It only takes 30 seconds for an infant to drown. So if you knew you were going to crash down in the water, would you get your little ones out of their carseats and hope that when you landed it you didn't get wedged in between something and could get out of the car immediately and swim to safety with your babies? This could risk injury during the fall. Or leave them in their seats for safety and hope when you land you can get them out of their seats and to the waters surface before they drown? I'm sad thinking about how many cars and people are still unaccounted for and how many children could have been in those cars. I pray I am never in this situation with my little ones. What would you do?