Now is the time to be collecting contact information from every transaction your restaurant has.
Build the list, send a welcome email and follow up with a short connection once a week.
Whether you are fully open, reduced capacity, takeout only, or closed. Building a contact list that you can have direct communication with will forever change how effective your future event, promotions and specials will be.
Don't rely on the social media megaphone to just broadcast generic messages to your fowlers.