I get that it is annoying. However, in the long run, if you’re spending 24 to 40+ dollars to eat food you didn’t have to prepare and was brought to you, and you don’t have to deal with the dishes afterwards, what’s the pain in spending 1.50 to 2 dollars more?
If you REALLY want to send the message home that you are unhappy with their business practice, simply stop going there. That is one sure fire way to end their business. Just know that as you hurt that business, you are in turn hurting the employees who had no say whatsoever in how the business model runs.
Everything in this world is give and take.