Suddenly, Patrick Harrington’s bayside street in Ship Bottom was a parade of cars and cheers and music. Harrington’s parents had ushered him to the family’s front yard on a sunny day last week, where, to his surprise, friends, local police and first responders, lifeguards and others from the community drove past – as Mark Keeler’s MK Productions van provided good vibes tunes – to show their support for Harrington’s fight against Hodgkin’s lymphoma.

“It was something I could have never imagined,” Harrington, who will turn 31 later this month, said of the lively line…