Yes, please come dressed in your best costume.
The best option would be on-street parking, but there are also a handful of parking garages within a 15 - 20 minute walk from Jalopy Theater.
Brooklyn Motor Inn is the most cost efficient and closest option only being a 5-minute walk from Jalopy Theater. Other options are Aloft New York Brooklyn and New York Marriot at the Brooklyn Bridge, both of which are a 15 - 20 minute drive from Jalopy Theater.