It's not like we in the northeast dont get our share of salt in the winter time...
I would think going to a standard drive-through wash would do a better job of cleaning the salt from the undercarriage ... if you can find a 'good' properly maintained one.
That sounds great... I've driven through the area to get to VA Beach a few times in the past couple yrs, never went to the coastline though.
I definitely need some downtime.. sit and stare at the ocean for a few hours.