Sat Navs Wrongly Saying "Road Closed.."

Ziltoid:
Does it use Google maps data? I’ve noticed a couple of times recently Google saying roads are closed 24 hours when it’s only an overnight closure. Strange, as they’re normally pretty good on that.

This. A47 has been showing as closed for the past two weeks during the day when it’s allegedly closed overnight 2100 - 0600.