But being teetotal, Coyle almost made the grave mistake of chilling the red, which would not have gone down too well with Ferguson, in particular as his team had just suffered a shock defeat.
One of Coyle's backroom staff mercifully came to his aid, ensuring the wine was served at room temperature, allowing Ferguson to at least drown his sorrows.
What delighted Coyle was that Ferguson spent an hour chatting to his fellow Scot and his staff after the game despite the stunning loss, underlining to the now Bolton boss the world-class nature of the man.
Ahead of United's visit to the Reebok Stadium on Saturday, Coyle was fulsome in his praise for Ferguson.
"He is the best manager in the world, and a role model for anybody in football," exalted Coyle.
"You look at some of the highly-influential players he has lost, and yet he goes and builds another team, which is not easy to do.
"But that tells you all about the job he has done. You ask anybody and they'll tell you he is the best manager in world football, bar none.
"I was fortunate enough to play against his team early in the season at Turf Moor, and we managed to win it.
"But the biggest thing for me was after the game when he came in and saw us and sat with us for nearly gone an hour, and just showed his class.
"That's why he is the best operator in world football because he has that touch of class, humility, and all the other attributes that go with him.
"There's no doubt for me he is the perfect role model for anybody aspiring to be a manager, not just for the level we want to get to, but also for the way he conducts himself."
Ferguson's actions that night far from surprised Coyle, and the welcome mat will again be out on Saturday, partly in thanks for the words of wisdom the United manager has imparted over the years.
"At the end of the day he is the very best at what he does because he has a fantastic relationship with people, coupled with an unbelievable knowledge of football," added Coyle.
"He's been terrific for me. Anytime I've needed a bit of advice, he has been there, and I've a lot to thank him for.
"I don't think I've a better relationship with him than anybody else, but what I do know is, if I need any advice then he is there for you, and that's a measure of the man and the quality he has."
Coyle, meanwhile, has warned Gary Cahill he is far from guaranteed a return to action, despite the fact he has been missed.
Cahill is fit and raring to go after spending the last two months on the sidelines after recovering from a blood clot that resulted in surgery to remove a section of a rib.
Although Cahill was an unused substitute in last weekend's defeat at Everton, the 24-year-old confirmed his fitness by playing the full 90 minutes of a reserve game on Monday.
Despite that, Coyle remarked: "Gary played the reserve game the other night and came through it with no reaction.
"He's trained well, so he's in consideration along with the rest of the lads. We have to be respectful and not pay any disservice to them.
"They've been magnificent, with a number of clean sheets.
"When I came to the club we hadn't had one in the Premier League, but we've had five now in the last 13 games. Everybody has played their part.
"I've said before, it's great to have fantastic individual players at your club, which we have.
"But our strength has been our unity, so yes we've missed Gary as an individual, but when he comes back in he'll play a big part in the team structure, and that's the way we go about it."
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