Yes on a number of occasions
Yes, for the better (eventually sometimes)
I work on the principle that officer is just a bloke doing a job, a person like the rest of us you will have all the day to day life & job stresses that we all have. Being lippy, a smart bum or snotty is not going to help you. I just behave in a pleasant (but not creepy) matter of fact way as I would do any member of the public at a show.
The first stop was an alert officer following me wondering why I was driving an armoured Land Rover with Irish number plates. After explaining the history of the vehicle & how I restored it, before he made his excuses, he asked when was the next MV show as he quite liked see the old vehicles. The following weekend I saw a bloke in shorts with a funny hat + a screamy kid on his shoulders eating a melting ice cream as he posed for a photo in front of my vehicle. I nearly went up to him but thought let him just enjoy his day.
The next time there was a massive convoy travelling north from Marchwood military port, I rushed home & got my camera photoing most vehicles including some MP Rovers & MOD Police saloon cars. I lost track of one until I found it had broken from the convoy & had driven up behind me I was aked to explain myself. I am not sure of their powers of jurisdiction but I am sure they could have soon summoned someone who had. After a while of chatting their eyes were glazing over, all smiles & left & told me what other types of vehicle were yet to be photoed.
The most recent time was being apprehended walking on the motorway trying to get some water for the pig. I was in the wrong & silly to do this I realise. Rather formal at first, quite rightly, once in the car & giving me a lift all was fine. It turns out they had just come from an official police event where I had been displaying the vehicle as it had a time in police service. They had been playing in the band at the event but were now back on duty.
There have been a number of occasions at laybys or filling stations. I have been scrutinised from a distance, I just smile & often this initiates a conversation, it often turns out the officer is ex-forces or is a model maker or restores Land Rovers.
So just blokes doing a job, a difficult one & one might as well try to make everybody's life easier. I can think of 3 officers I know of in MV/Land Rover restoration.
Why do you ask? Have you ever been stopped?