State line road signs?

So this is for a school project… You know how there are signs at the state lines that say, “Welcome to insert state here?” Are there also signs that say, “You are now leaving insert state here??”

Also, are those typically only on the larger roads, like interstates and such?

I’m trying to find a sign that says “You are now leaving North Carolina,” but I want to know if they even exist (google didn’t help) before I go on any road trips. Thanks in advance!