Rules depend on the booking channel
Official booking, comparison sites and travel packages may use different deadlines, fees and refund processes. Check how weather disruption and train cancellation are handled.
Call before the return time
An extension depends on the next reservation, opening hours and provider approval. An unreported delay may affect insurance or other contract conditions. Do not leave the car after hours unless explicitly instructed.
Work backwards from your train
Allow time to leave the resort, refuel as required, unload, inspect the car, pay and walk to Iiyama Station. Add more margin in snow or holiday traffic.