Theory - you have a family and trying to save on cost which made DCA logical. Next time check all options including EWR, ABQ, Trenton and ACY (before they get rid of the flights).

Anyway, as the week after Easter is typically a light traffic week due to school breaks (reduced at minimum 15% of road traffic) - removing any major accident should be fine.
Now, on the flip side because it is a major vacation weekend for families - you must allocate MUCH more time arrival & parking at airport.