The midfielder felt the Rojiblancos proved their Champions League credentials in difficult conditions in Russia, while Luciano Spalletti is still hopeful his side can progress
The Rojiblancos were on course for a fifth successive victory in Champions League Group G thanks to Adrian's goal early in the second half, but a Thibaut Courtois howler forced Toby Alderweireld to put through his own net and ultimately gifted Luciano Spalletti's men a point.
However, Garcia was far from downbeat after the game, arguing that already-qualified Atletico had proven their mettle in difficult conditions.
"It was not an easy match because of the cold and the state of the pitch," the 27-year-old told Canal Plus, "but we did our job.
"We knew it would be a tough game. To come to their ground required concentration. It was a pity about the equaliser.
"We'll deal with upcoming European games in the future. We're taking things game-by-game as that is what works for us."
Meanwhile, Zenit boss Spalletti knows that his side will most likely have to beat Austria Vienna in their final group game to have a chance of reaching the last 16, but he is hopeful that Atletico can lend his side a hand by beating qualification rivals Porto.
"We played true to ourselves and though we did not get the win, we have hope," the Italian told reporters after the clash.
"The match will be very hard against Vienna. But Atletico have proven to be a great team and they can beat Porto in their own pitch."
As of full-time in Russia, Zenit sit two points ahead of Porto, but the Portuguese giants have a game in hand on their Group G rivals, at home to Austria Vienna.