I missed the memo

Sorry; I missed the memo. Tonight was apparently "drive 15 MPH below the speed limit" night, and I didn't get the word. It was pretty obvious from the funeral procession down 517 that about 350 other drivers didn't get correspondence, either. Seriously, at one point, I was tempted to call the SPCA; there was a dog relieving himself on the lead car's back wheel, or at least that's what I thought. When I got closer, it was apparent that the driver of the lead car was blind and the dog was leading as fast as it could. People, I'll say this as nicely as possible. If the speed limit is 60...DO 60! Have some consideration for people who have better things to do than drive for hours on end!