If you were told that there were no reservations available at a restaurant and the weather turns stormy, call back and see if there are cancellations. Lots of people have the best intentions until they look at the bad weather and decide to cancel. Their reluctance to venture out can work to your favor. The season for crabs is late spring through early fall. To make a meal, figure about four crabs per person.
Several restaurants validate parking stubs from nearby lots and garages.
Check when you enter a restaurant to see if this is the case. It doesn't hurt to ask, and it may even save you a few bucks. The closer an eatery is to a major attraction, the more expensive the fare.