I think you need to tell us who that private guide was that gave you the cold stare so we can all avoid him/her in the future. That is unacceptable behavior for Japan.

Also, you need to email the hotel about the driver who got up to 160km/hr on the expressway to Narita. It is true that Japanese speed limits are so low (max 90kph on a wide open freeway) that people generally break the limits -- but not by that much, which is dangerous on that road. That driver endangered you and should not be in service to a luxury hotel.