I think this is explicitly addressed at the start. The question is not one of if certain cases should be prosecuted or if there should be certain rules that supersede the "vehicle in park" rule. The question is of the fact that the statement "no vehicles in the park" is violated or not. An ambulance is allowed to violate the rule, but it is still strictly speaking violating the rule.
The letter or the intent though? Because if it’s the letter, we’d better throw in wheel chairs, surfboards etc. as well. The law does not specify motor vehicles, even though I would believe that to be the intent.
