Folks, if you fondly recall the days of drive-in movies, they're not ALL gone from the area. There are 2 around Baltimore - Bengies near Essex & Big M near Bel Air. The latter has an old-fashioned drive-in restaurant in front. Even I recall those in the late 1960s around DC (wasn't Hot Shoppes that way?) - drive up to covered counters in the parking lot, each with a menu & machine with a button to call in your order. In time, a waitress brings out your food (sorry - I'm too young for the days with waitresses on roller skates). I know that drive-thru windows have replaced this, but as a kid I used to love buzzing the button & speaking into the speaker for food!
I've even seen such drive-in restaurants a fewyears ago in Washington State.
The next closest drive-in theatres (with their snack bars for popcorn, ice cream, sodas, burgers, fries & hot dogs) are near Winchester VA, Dover DE & Columbia PA. Some company caled Bumpers is even building a brand-new drive-in Eldersburg, MD.