Pray where you are.
You're a female and therefore are not required to go to masjed for congregational prayer. The prophet -pbuh- said that the female's prayer is better in her home, not masjed. What you faced is only one of the reasons as to why it is better to pray at home.
If you have a place where you'll be alone at work, do it. If not, go home and do it there, since Asr did not arrive yet.
Just pray at the masjid... They won't jump you... It's a masjid...
When slippers and rugs are stolen from masjids all over the World and half the beggars are faking, it means that a masjid is still a place that bad people can enter, it is not a magically sealed place that will protect the sister.
God knows best