arrive at ferry port at 1000 - put on rest
when you shunt on the boat and park put it on rest and do a manual entry - begin ferry mode
drive off the ferry park up and put it back on rest .
this is the way I’ve always done it and never had a problem .
Remember that the time you use to drive on and off the ferry must be added to your break - if it takes 5 minutes to drive on and get parked on the boat and another 15 to get off and parked up your daily rest cannot be finished before 21.20 . You are allowed 1 hour total time of driving and other work between the two shunts on and off so say it takes 10 minutes to get on the boat you could in theory drive for 50 minutes coming off the boat to get yourself parked up .