This report just begs more information.
1) If true, how can you have life saving medicine only in the car, without medicine available elsewhere. Seems to me, that if you have a life-threatening illness, you would always carry the medication on your person, like nitroglycerine, or asthma inhalers, etc.
2) Maybe he had drugs or other contraband in the car and wanted to retrieve it before a search was conducted.
Will wait to get updated reports on this one, but in any event, he probably got what was coming to him for doing a stupid thing like that.