We're planning on leaving our vehicle at the port the next time we cruise. How far is the parking area from the baggage drop-off? Do we unload one adult and all of the luggage, or one adult, both kids and all of the luggage, and have one person park? Are there any safety concerns with leaving the vehicle at the port? Is the $10/day parking a rolling 24 hour timeframe or is it for any portion of the day? (In other words, is it $40 for a 4-night cruise, or $50?) When debarking, are the porters gracious about helping us back to our vehicle (if tipped appropriately) OR do we have someone fetch the car and meet us curbside? Any other tips we should know? TIA!