RW, welcome to the site. I wouldn't wait for someone to come trap em out. Get out your 22 or 12 gauge and eliminate them before they do serious damage and cost you lots of $$$. Just keep it on the down low.
I don't like to kill things anymore but when groundhogs undermine my barn they are DOA. Don't mess around, get rid of em.

Do nature a favor, spay/neuter your pets and any weird friends or relatives.