Crossed plenty of closed bridges.
Back in June I rode on two sections of I-90 in Montana that were barricaded at the on ramps. Don’t know if they were officially closed to motor vehicles only. (Every inch of Interstate Highway in the state is normally open to bikes.) It sure was fun having the road to myself. Don’t feel the least bit guilty, especially considering the alternative, which would have been riding the shoulder of the eastbound side towards traffic for a total of about 8 miles.