90% of the time this kinda thing corrects itself without intervention...give it a few days to dry out.

Check the cavity where the coils and plugs reside...this is typically where water manages to penetrate and pool.

Try to remove as much standing water as physically possible. A wet-dry vac or compressed air hose works well.

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2009 ML350 (106K) - Family vehicle
2001 CLK430 Cabriolet (80K) - Wife's car
2005 BMW 645CI (138K) - My daily driver
2016 Mustang (32K) - Daughter's car