Starting to think it's OK to ignore the one-way signs

In Ohio state parks the ranger will give you a ticket if they catch you going the wrong way when the road is posted and has arrows painted on the road. The roads in the State parks are state roads just like any other state road and subject to the same laws. As a camp host I have seen them write many tickets for speeding, running stop signs and going the wrong way. The drivers attitude has a lot to do with it though. Our rangers are not out to spoil you day but have to enforce the rules to keep order.