Grandma took pictures of me and police got called on her

Some context I'm a Muslim woman wearing the hijab and my grandma looks like the whitest woman ever and seems a little like a Karen, she isn't tho

So I was in a book shopping trip with my grandma. I asked my grandma to take pictures of me during the trip because soon I would not be able go to trips anymore due to my illness. She took the the job super seriously (which is absolutely awesome). I was looking at books I wanted to buy and assumed my grandma was doing the same somewhere else. She wasn't, she was hiding from me and takings pictures of me in a way I wouldn't notice her. Some man noticed her though and got the bookstore owner and police involved (he thought my grandma was a creep and racist). He also started staying around me. I was completely oblivious and had no idea what was going on. Just thought that the guy was a creep following me. Police came and it all got resolved super fast but it was awkward. I also had to translate for my grandma since she didn't speak any of the language. The man did a right thing getting involved but it was a little embarrassing for everyone involved I think. ( My grandma at least got some fire pictures and we got a memorable story to remember)