The shoe/boot cover is a nice, but probably expensive, item.
I'll presume most of us have had the devout Jewish patient, who won't violate the religious laws, and "ride" in the ambulance during the Sabbath, Sundown Friday to Sundown Saturday. Aside from calling Hatzoloh Chevra Volunteer Ambulance (the biggest volunteer ambulance I am aware of, with International headquarters in Williamsburg, Brooklyn, NYC NY), all I can do is remind the patient that a "Grand Rabbi", some centuries ago, said that it was all right to break the Sabbath to save a life.
For the uninformed, Hatzoloh seems to be equal parts EMS and religious practice.