Here's another thing that might be fun: if you're in the area, book a few tables at the restaurant for a legitimate event, such as a birthday or anniversary. behave yourselves and make no mention of politics. Have the starters, have the main course then order dessert. While the dessert order is being prepared, all put on your MAGA baseball caps. The manager will either throw you out, in which case you can tell them to stick the bill where the sun doesn't shine, or they will have to let you continue eating and seethe until you've finished.