The 12-ounce drinks are a dollar at participating BK restaurants Monday May 28.
A Burger King locator by zip code is featured on the web site.
AARP Members with a valid proof receive a free donut with an eligible purchase.
The eligible purchase apparently is a large or extra large hot coffee. Members also may need to flash their membership card as proof they are part of the non-profit organization for folks age 50 and older.