For one tieing my horse for hours isnt a punishment for hurrying back.
So what was the point of you telling that here, in this thread?? It appears that you were telling it as advice to OP, so don't get upset about people taking it that way.
My horses are working horses they are riden 6 days a week all summer,spring,fall. They are riden 4 to 5 hours a day...
Sometimes spend a week being tied to trailer.
Oh I didn't know they were working horses or ridden that hard. Spending a week tied to a trailer is a not very good practice you may want to reconsider. There are such things as portable yards.
Anyway, back to OP... Horses live in the moment, training-wise, and I don't really agree with the concept of bringing them back & asking them to work more, for previous 'misdemeanors' for that, among other reasons. I also don't want the horse to think of 'work' as punishment at all anyway. & often & depending on the reasons for the 'bad' behaviour, (further) punishment at home is still worth being at home for, so won't change the behaviour.
Horses frequently aren't happy to be 'worked' and don't feel secure about leaving their safe environment & 'herd' with a human they may not feel secure with. I'd work on changing that attitude, rather thanjust adding more 'punishment'.
You 'got rid' of his buddy? So he now lives alone? I'd rectify that situation, because, aside from other reasons, he will be more generally stressed living alone, which will 'rub off' on everything else.