This might be a stretch, but I am heading out to the east coast this
week and will be in Chevy Chase, Maryland. How is the shore and all
the boats after the storm?

There's no shore in Chevy Chase. Nearest water's either the Potomac or the
Bay off Annapolis.

Ernesto caused little or no damage. Just the typical stuff you'd see from a
high tide and poorly moored boats. A few lost bimini covers or sails
improperly stowed. But otherwise, nothing of any consequence.

Does any one know about what dolphins you see while you are boating in
this area? Do you know what species of Dolphins you have along your
coast?

In the Bay? None with any regularity. Given how shallow the Bay tends to
be it wouldn't seem like the sort of environment they'd be found in anyway.
Regardless of pollution, which would have had to have been QUITE a while ago
(not just decades) for it to have mattered. The bay's been a working
tributary for quite a long time so pollution's nothing new, certainly ot a
"few decades" worth.

Does anybody have recent experiences?

Out on it every week since this past April, no cetacean or other marine
mammals cited sighted. But I hear NYC had a manatee recently...