AITA for refusing to leave work to bring my husband his glucometer kit that he forgot at home?

My husband is diabetic. He's been diagnosed with this condition for over a year. He tends to be quite reckless when it comes to keeping his stuff in order. Including his glucometer kit. He works daily and often times tends to "forget" to bring the kit with him to be able to test sugar levels in his blood. This would cause me to leave work several times (I even got a warning) to bring him the kit to his work. As a solution, I started personally packing his kit to take to work so that he won't forget it again. He threw a fit about how I was treating him as if he was my son and firmly told me to stop packing his kit for him. I stepped back and said "fine" and that he would be the one responsible if he forgets it again. He did not say anything in response, just glanced at me.

Days ago, while I was in the middle of working, he called me saying he fkrgot his glucometer kit and that I had to leave work and head home and bring it to him. I was in disbelief because of what he said. I was also quite irritate, especially after he denied having a hypoglucemia or feeling dizzy or sweating or anything. I refused to leave work and he lashed out calling me selfish and uncaring but I reminded him how he prevented me from preventing him from forgeting his kit and acted sensitively to the fact that I pack his stuff for him. I hung up after he kept insisting I leave work although he knew I had already recieved my last warning.

I turned my phone off and after I went hom, he yelled at me about what happened and called me selfish again. He claimed I prioritized work over him and has shut me out completely. His family found out about what happened and claimed that I'm "unreliable" and cannot be trusted in emergencies.

Was I the asshole for not leaving work?