We used to see this regularly here in West Marin. Well-meaning animal lovers with very little understanding of the natural world find "abandoned" young seals and decide to "help" them. The first thing they notice about their new little "friend" is that it feels cold to the touch... Time to warm it up, maybe with blankets, maybe with the car heater, much to the detriment of the pup which often does not survive the "help."
I hope that the proliferation of educational signage by the National Park Service and other entities in recent years has curtailed most of this sort of activity by people who don't seem to understand the difference between their Labrador and a wild animal.