The sketch has since been taken down, but many are still scratching their heads as to why employees greeted their customers with a Hitler drawing, and especially around 4th of July weekend.
A woman was shocked to be served with hateful symbolism at a Taco Bell and snapped a picture of the sketch.
"It's terrible that this is placed on a window in Parker during Independence Day weekend," said Scott Levin of the Anti-Defamation League in Denver.
Levin says the intentions behind the sketch could vary.
"Sometimes, something like this is being put up just to get a rise out of people, but often times, we are finding these days that there [are] a lot of hateful incidents that are happening," Levin said.
And he says anti-Semitic incidents have more than tripled since 2014.
Navy vet Joe Hernandez is disappointed by the drawing, but is not surprised.
"I hate to say it, but when you have got the president that we have now, it's not going to stop, especially among Hispanic or any other race," Hernandez said.
But Brandon Loy says while the drawing is appalling, everyone is entitled to freedom of speech.
"People have a freedom of speech, people have the right to express what they want to say, and ultimately pieces of art like this are important for our democracy and are important for expression," Loy said.
In response to the sketch, Taco Bell released a statement saying, "Palo Alto, Inc., the franchise owner of this Parker, Colorado location, and Taco Bell in no way tolerate this behavior. The franchisee is looking into the matter and will take appropriate action."
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