Was any of it really necessary?

Back home after an 11 hour, 10 minute round trip for a 20 minute interview. Not wishing to keep anyone in suspense for longer than necessary, I've been reinstated, I'll be back at work on Thursday morning.
Now to fill in the back story a bit. It really looked as though it was going to be one of those days from the outset - a few of the London trains stop at our little local station, and the timings of my trip meant I could catch one of them this morning. It left exactly on time, went the few miles to our nearest mainline station, arrived on time - and then sat there for over half an hour with a technical fault. It was eventually fixed, but the half hour delay was never recovered, so my plans at the destination end had to change - I basically had to go into Central London and back out again, rather than being able to change, as originally planned, onto a suburban service at Reading. I arrived at the offices where I was scheduled to meet my manager about 15 minutes later than I anticipated, but I was still 10 minutes early. That's when the frustration began to be ratcheted up again - my manager had been in a meeting which had overrun somewhat, so he showed me into a vacant office, and then disappeared for a quarter of an hour while he made himself some tea, leaving me stewing, and eventually close to fuming, as all my rushing about to be punctual seemed to count for nothing. When he eventually reappeared, the interview, such as it was, consisted of him handing me a letter formally confirming my suspension, asking me about three questions about what had happened, then me spending 5 or 10 minutes ranting at him about how I felt I'd been treated, and that I had no intention of supervising any more trainees for the foreseeable future, and then him saying he 'wanted me back at work by the end of the week', but in the next breath saying that he had to discuss the matter with his line manager before any decision could be made, so I left to head back to Paddington still not knowing my fate. I felt like kicking the furniture, at the very least. However, I was finally put out of misery about an hour and a half later, as I was sitting on the train home waiting for it to leave, when he told me to report to his office at 7:00 on Thursday morning, for a 'quick chat', after which I'll return to a normal early shift.
When I rang my wife to tell her the news, she said 'Are you pleased?'. Good question. There's still more than a little temptation to tell the company to stuff the job up their arse, but I'm not liable to be able to walk into another job which pays as well if I did, so discretion will doubtless be the better part of valour, at least for a while.
I still can't fathom why today's little drama couldn't have been played out by phone and/or post, or, indeed, why I was suspended in the first place for something I had no control over, but I guess I would say that, wouldn't I?

Love & best wishes to all
Sammy B