Thank you, it was the first thing I thought and was about to go search for it

This is done in a number of overpasses on the DC beltway and “mixing bowl”

A road may go North while the other direction goes East and the signs will point that out but the road might actually be labeled South for a bit despite the sign saying East.

So folks have rappelled off the overpasses and painted EAST and an arrow or NORTH and an arrow in places like this.

And everyone clapped.

Difference here is that he was correctly a clear mistake. OOP here did it for their own selfish reasons