My wife works in retail and a lot of employees in the service industry have main character syndrome and probably aren't accommodating of people with autism and unusual needs.

I used to think it was insane that people were afraid of getting their food spat in for asking for no pickles but I get it now. My dad would always resist making special requests like that when my autistic sister was a boy because she had a consistency thing about pickles or any other changes in the consistency of food and our dad would always make excuses about it taking a long time. She worked in retail for a long time and there are absolutely employees who are petty enough to spit in food over simple requests like that because "it disrupts their system."