They’re due to do what they do

I couldn’t help but wonder if a double meaning was intended in this opening line from an ITD press release: “Keep your holiday season merry, just don’t overdue it.” Was it urging people to renew their car registrations, perhaps? Or their driver’s licenses? Return their library books? Alas, it was announcing stepped-up patrols for drunken drivers. No word on whether the crackdown was overdue.