You could let them know as a courtesy. But notification isn't required in some jurisdictions. You would need to verify whether or not it is in your locale.
Since you mention it was OC, it should be plainly obvious but again, check with your jurisdiction's laws. Some are okay with OC in a vehicle while others are OC in a vehicle is CC here.
Since your location is VA, you can OC without issue. Notification isn't required.
You know the drill. I'm not a lawyer or anything. Don't forget to verify anything you've read / heard.