The common sense was required when negotiating the deal, what we are dealing with is the application of the rules, which just dont work.I can remember a time before we joined the Common Market. Getting stuff across the border was not straight forward even then. To get machinery into Italy, the driver had to take several pairs of brand new Levis as gifts to border control. No gift, no entry. It didn't matter how perfectly the documents were completed. I am not saying that the current problems will go away if bribery started up again (nor am I condoning it). But the problems may be eased a lot if border control stopped trying to teach us a lesson for daring to leave the EU. The example that you give above (which is astonishing, but that I believe) is a perfect nonsense that would be solved rapidly with good will and common sense. We just need some to break some out from whatever box folk are keeping them in.
I have not seen any stories anywhere of this happening to vehicle shipments coming from the EU into the UK. I believe that this is because the UK unilaterally decided to go easy for six months. If we can do it without our country falling apart, why can't there be some reciprocity?
There are reports of Dutch customs guys confiscating the sandwiches that UK drivers were carrying for their lunch. Apparently it is illegal to import certain foodstuffs into the EU. (Not an import, just lunch!) They weren't saying it was illegal when the UK were air dropping thousands of tons of food supplies into Holland after WW2 to stop the population from starving. Give some people a uniform and a clipboard and they go power mad!
The current situation has nothing to do with the concept of Brexit as such, but an outstandingly incompetent Brexit deal - surely you can see as a Brexit supporter, that there's a big difference between the concept of a beneficial Brexit, and the reality of a badly executed one.
In the construction industry I know plenty of people who voted for Brexit mainly driven by the taking back sovereignty idea - one in particular runs one of the biggest flooring suppliers in the UK, and I remember the day after the vote seeing him, he was so happy, and had broken out his Sunday best to go to work that day - he voted because he felt is was a chance to show pride in his country - now he is struggling to make his business run, get supplies, fulfil orders, and get any sort of certainty out of his supply chain, and wishes the vote had never been held.