Replay says you are wrong.
From the official MLB rules:
3.00 Game Preliminaries
Before the game begins the umpire shall:
(a) Require strict observance of all rules governing implements of play and equipment of players;
(b) Be sure that all playing lines (heavy lines on Diagrams No. 1 and No. 2) are marked with lime, chalk or other white material easily distinguishable from the ground or grass;
It was fair.
Carp speaks in such clichés it drives me up the wall.
There is no chalk to fly up. The lines are painted! It hit the line.