Terry Butcher, the Inverness manager, perhaps summed it up best by proclaiming that were he an Inverness supporter, he, too, would have booed as loudly as many did at the end.
But if the home side were bad, the Dons were worse, and Craig Brown, their manager, was at pains not to crow about the win, achieved through two own goals, courtesy of Roman Golobart and Kenny Gillet.
Butcher was as angry as he was disappointed and puzzled as to his side's inability to kill off their opponents when they had much of the possession.
"I'm just stupefied as to why we played like that after two good weeks in training," he said. "We've talked the talk, just not walked the walk when it comes to winning matches.
"I thought we dominated certain periods of possession and looked a threat, but didn't really make many clear-cut chances.
"We didn't do enough to win the game. I'm disappointed for the fans who were booing at the end – and I would have been too.
"I'd have been annoyed if I'd paid money to watch that. I'm looking for much more from my team. That energy, that desire just wasn't there.
"It's a nice sunny day, perhaps too many were thinking about sun-loungers and pina coladas.
"Some of them can have pina coladas for the rest of their lives, as far as I'm concerned."
Changes in the home side from that which drew with St Johnstone last weekend came in the shape of Steve Williams and Aaron Doran, who replaced the suspended Ross Tokely and Greg Tansey.
Aberdeen's line-up included Russell Anderson for his first start since returning to the club. Goalkeeper-cum-striker Josh Magennis was asked to assume the role of right-back after a spell of sustained coaching in that position.
The 21-year-old Northern Ireland international, unable to make an impact up front for the Dons, hopes he can cut it as a defender and win a new contract when his current deal expires in the summer. Scott Vernon, Aberdeen's leading scorer, was withdrawn from the team after complaining of feeling ill in the morning.
But the major talking point among the visiting fans was that goalkeeper Jamie Langfield, who suffered a seizure before the season was under way, was back in action. His services were required as he dealt with three decent strikes from an energetic Caley Thistle in the opening 15 minutes.
One of those shots, from Jonny Hayes, prompted Langfield into acrobatics.
The Highlanders' quickness to the ball made them look the more likely to score as the visitors struggled to make any impact in a first half lacking in cohesion and innovation.
That they took the lead was surprising. Magennis's long throw into the Inverness penalty area ended with Golobart's backwards header beating Jonny Tuffey, his own goalkeeper, in the opening minute of the second half.
Then, with a minute of regulation time remaining, came a second bizarre own goal to seal the points for the visitors and send the home supporters racing to the exits.
Magennis, reactivated as a striker, blazed a trail towards goal on the counter-attack, to see his shot rebound off Tuffey and onto the legs of the hapless Gillet, the Inverness left-back following the ball into his own net.
"We've got to be grateful for the points," Brown conceded, "but we can't go shouting it from the rooftops because it wasn't a vintage performance."