Thanks for the number Patrick and Kim. They gave me another number to call for the Deception Pass State Park unit. I was told that there is no maximum days of stay in the parking lot for a truck and trailer. The cost is $10 a day for parking. We parked there 2 years ago next to where the Marine Park host lives 24/7 for the season. At the time, she told us that she would personally keep an eye out for our truck and trailer. The State Park Ranger regularly drives through the parking area to make sure everybody has paid. We don't mind that. We like this ramp because we have found that if Rosario Strait ever blows up we can often get back the long way through Swinomish Channel. Thanks again, Gary and Colleen.