those tables have been like that since the day they opened, something like 10+ years ago; it's way past time for them to fix or replace the damn things.
heh heh heh... the most perpetually annoying restaurant problem, totally avoidable. Take some time with your effing tables! It's the same way a single person will eat out or bake pizzas when their sink is full of dirty dishes... a simple task, perpetually put off.