well ‘crash’ is kind of a generic term used for any incident involving a vehicle and they can be caused by other objects besides the vehicle in question, and parked cars may be involved in incidents
so an animal/person/tree/meteor could theoretically fall onto a parked vehicle, and in that sense ‘speed’ would not be a vehicle factor code
source: I work with state crash forms as part of my job and see all kinds of factor codes, not all ‘crashes’ necessarily involve a moving vehicle
some examples: Parked, Stopped in Traffic Lane, Explosion/Fire