Got pinged.
Last actual close contact with person was last Friday but ping date was Monday as I was "in" but not actually in same room.
Family holiday booked in our own caravan, can finish ten days isolation on the caravan no problem. Can use the caravan during the journey for loo breaks etc during the journey,
Would I be unreasonable, if I don't develop symptoms, to go the day before my technical isolation ends, bearing in mind the last time I was close contact with the person was actually three days earlier