Bad attitude from staff

I visited the Fourways branch on the 07/01/2019 and entered the store around 17h45. I went with the intention to change clothes. Whilst browsing the staff members started telling me where the door is. It seemed like the staff were ready to leave. What is the purpose of having store times till 6 when I was being told that they closed at 18h03. The till staff too were closed. One of my colleagues with me wanted to go to the fitting rooms and that was closed. Whilst browsing for the clothing items I wanted to change - I picked up shoes. I ended up walking out with these shoes - unintentionally obviously. We were under pressure to leave the store. So I would need to return these shoes or pay for them. Please can arrangements be made with someone in store that I can return them. I don't want to have to deal with theft accusations if I get there unannounced.