Rated A, B, or C

Again, it amazes me that NYC has always been receptive to health-related changes - even if those changes border on over-regulation, e.g. the smoking ban on restaurants, visible displays of food calories.

Starting in July 2010, New York City is requiring restaurants to post letter grades that correspond to scores that it receives from its sanitary inspection. An inspection score of 0-13 is an A, 14-27 points is a B, and 28 or more points is a C. Grade cards must be posted where they can easily be seen by people passing by.

Started noticing the posted grades this weekend. Below a C means they must be shut down.
Would I still walk into a place I frequented with a C by the door?
Probably.
Old habits die hard.