Police didn't pull me over for not stopping behind the limit line, could I get a ticket in the mail?

So last night I was driving and I reached a four-way intersection. I made a complete stop except my car was past the limit line. On the right side, there was a police car, who I'm sure could've seen me commit that violation but he didn't pull me over. I'm sort of paranoid, I'm never gonna stop beyond the limit line again but would he mail me a ticket or do you think he just didn't care since it was such a minor violation?