Sakura Matsuri, Japanese Street Festival, 15-16 April (https://sakuramatsuri.org). A Virginia winery (https://www.visithpg.com/events/category/arts-culture/list/)? A show at the Kennedy (https://www.kennedy-center.org/whats-on/explore-by-genre/jazz/2022-2023/new-jazz-masters/)?

I would be wary of going through the airport even with spent ammunition, quite frankly. The bomb sniffing dogs might not like the smell.

I would suggest scrolling through the reviews for Equinox. While many have good experiences, others do not. The biggest complaint is poor service. I went to Equinox about 6 months ago for brunch. I was disappointed. Nearly every dish was cold and stale and the service was not great. https://www.yelp.com/biz/equinox-restaurant-washington-2

Yes, a vegan -- not vegetarian -- tasting menu ($105 per person) and not completely raw. It also has a corresponding wine pairing ($80 per person). https://www.elizabethsgoneraw.com/menu

https://www.cartalk.com/car-donation/

One resource you might use, whether for Baltimore or anywhere (worldwide), is happycow.net (https://www.happycow.net). It will help you find vegan restaurants, restaurants with vegan/vegetarian options and markets. It includes ratings and comments.