His volunteer efforts continued at a local hospital, nursing home and the Salvation Army until his body no longer allowed him to, according to his obituary. Despite the disease's advancement over the years, Duffy focused on the good and adapted to make the best of it all, friends and family have said. Duffy's medical coverage became a cause for the local community in 2019, when a switch by Byram Township from a private to a state insurance plan sent the price of his medication soaring. Under the change in June 2019, his medication went from a $10 co-pay to $16,000 a month. Duffy's "brothers in blue" stepped up to help with a beefsteak dinner in February 2020, held at the Sussex County Fairgrounds. The union had to cap ticket sales after the interest exceeded the capacity of the Richards Building at the Fairgrounds.