Ultrasound tech wouldn’t let me record ultrasound?

Idk if it’s normal or not but i was getting an ultrasound of my baby done and wanted to record because it was moving like crazy and i nicely asked if i could record, and she kind of snapped and was like “no!” so i said okay I’m sorry. I’m in medical school and while learning about hipaa i discovered it’s illegal for them to not let you do that, since it’s your body and your medical records? Then i started texting for a second and she snapped and told me to just put my phone up, i guess she thought i was recording but i wasn’t but i still put it up anyways. Can they do that?