“You’d better” sounds like a very passive aggressive threat. The intended sentence is probably a warning that the restaurant’s peak time will end in 2 hours and that service will improve at this time, leading to a more enjoyable meal. It would be better to say, “A gentle reminder. You will have a more enjoyable meal in 2 hours”.
At the very least, this sign should say “break” not “brake” but as for the rest, I honestly have no idea what it’s trying to say. Is the sign really asking you to break a wall? Is that even possible?
Drinking a car would be impossible! Eating it would be easier but still very difficult. Better would be to say, “Don’t drink and drive”, making the whole thing much clearer to everyone.
(source : https://qsepodcast.wordpress.com/2013/03/18/examples-of-broken-english/)