Guardiola chose to get his message across, in what appeared to be some sort of industrial Spanish language, at half-time that resulted in Lahoz directing the City coach to the stands for the second half.
City might have doubled the lead on the stroke of half-time had Leroy Sané's strike not been chalked off controversially for offside, but Liverpool scored twice in 20 second-half minutes to end City's European campaign at the quarter-final stage.
Bernardo smacked the post with a shot as City swarmed forward and they were unlucky not to get a second when Sane turned the ball home but was flagged offside even though the ball had bounced to him off James Milner, not Jesus, as Lahoz had judged. That is why sent me off.
"I didn't insult the referee", Guardiola said. He likes to be different, he likes to be special. when everybody sees the things, he's going to decide the opposite. I didn't say any wrong words.
This desperation was exacerbated by Guardiola's introductions of Kevin De Bruyne, Gabriel Jesus and Sergio Aguero - players who should have been saved for their next game days later, but were instead utilised in a bid to avoid a second consecutive defeat. They could've scored two or three goals in the first half but it was 100% clear that if we win the ball we'd have an opportunity. And off one of them, Salah collected a loose ball, rounded goalkeeper Ederson Moraes and deftly chipped in the equalizer in the 56th for his 39th goal of the season.
"In these kind of games, in these competitions, the impact is so big".
The Holland captain recovered from a nightmare start after just two minutes when his error led to City's goal when he lost possession under pressure from Raheem Sterling. "Of course that has an influence". Consequently the City boss was ordered to watch the remainder of the game elsewhere by Antonio Mateu Lahoz, a referee with whom he has history.
"In this competition the teams are so equal and the influence of refereeing decisions is so important".
That enraged City and their protests continued after the half-time whistle with Guardiola coming onto the pitch.
"Since I am here [bad behaviour] has never happened in this stadium", Guardiola said. Well, they weren't. Especially not the Spanish team of match officials.
By the time it was all over it was hard not to reflect on the line from that old Anfield song about enduring a storm and emerging on the other side triumphant and stronger for the experience, although Jurgen Klopp could never have imagined this would go as well as it did.
But Salah scored another wonderful goal in the 56th minute to level the score before Firmino's goal in the 77th minute, which ended Manchester City's hopes of qualifying to the Champions League's semi-final.
"We played for 10 months amazingly", he added.