Don’t take their rudeness personally. You don’t have a real relationship with them & that’s how they might see it. They just do what they need to do. They probably hate their jobs. They could be very introvert med or anti social.

If they are loke this with everyone, then it’s not you. Even if it is with you only, so what, you’re not thete to make friends. It hurts, but some people are just unfriendly.