I thought shops had enough signs, arrows, etc, for us to follow to show which way to go. Any I have been in for the first time seemed very well organised. Maybe she shouldn't of shouted at you, unless you were far away from her, there's no need for that though, but I suppose if it keeps happening it ends up getting frustrating. I've worked in shops since leaving school and it's a thankless job most of the time, I've been sworn at, threatened that they knew where I parked my car and would be waiting for me after closing, etc. Covid, I believe has made it even worse for retail staff and the way they have been treated by some of the public. You just explain why it happened and that now you know what way to go you definitely wouldn't be doing it again.