Police Took The Wrong Gun When They Arrested My Husband And Are Now Asking To Get The Correct One

Hi, I am in Texas and my husband was recently arrested for assault with a deadly weapon against my step father which is a who we lived with. When the police came, they took my firearm from inside the home, instead of his (the one that was used in the crime). I called the police department to let them know of their mistake and to try to get my own gun back as neither me or my gun we’re involved in the incident. The one singular person that handles these cases says she would reach back out to me. I got a call today from a different police officer asking me to explain the situation and asking if they could come take the correct gun noting that they couldn't promise to get me my own gun back but that they would need my consent to get the correct gun. I'm trying to understand if they have the right to come back to take my husbands gun even if I say no. Was it legal for them to seize mine instead of his? Any advice would be appreciated.