I Black Bear Pass isn't in a national park or anywhere near one, so someone driving a Kia off the trail and getting stuck would have no effect on decisions that any park manager would make about anything. In fact, as far as I know, motor vehicles aren't permitted off-road or off-trail (Canyonlands NP is an exception, and there may be a few others) in any national park or monument or any of the other formal designations for parklands. Well, maybe at the White House (yes, it's an NPS property), where Marine One is allowed to land on the lawn.
As a general rule, no matter where they occur, isolated incidents involving stupid behavior of hikers, climbers, motorists, campers, boaters, snowmobile operators, cyclists, horsemen, Nordic skiers, sunbathers, and folks who attempt to feed or taunt wildlife, etc., do not elicit kneejerk reactions from park managers. At one time or another, they've seen it all.
Would it make you happier to know that NPS regulations apply to all aircraft and not just drones? I mean, doesn't the FAA consider drones to be aircraft? Don't we like to think we're pilots, and that we're operating aircraft?