Without knowing the instructions I will still make a general observation.
I would have picked a purse and stood in the check out line. When the associate was ready to assist me, I would have then informed them I have questions I need help with before I can make a purchase decision. Better than following them around. If my instructions required I spend x amount of time waiting for assistance, I would not shortcut that.
I had a candy store shop last month. It required I have an associate answer questions, on the floor. There was one associate. He stayed behind the counter, customers were waiting in line, he assisted them in order. I joined the line, 20 minutes later it was my turn. I asked a question that he tried to answer from behind the counter, I moved towards the items on the floor and pretty much forced him to come from behind the counter to assist me.
My posts are solely based on my opinions and for my entertainment, contact a professional if you need real advice.
When you get in debt you become a slave. - Andrew Jackson