Conflict of Interest/outside employment

I asked my SM a little while ago if I could get an additional job because I am trying to save for a car and to build savings in general to move out. I was looking to get a job at sheetz or something on overnights just for some extra income a few days a week. SM said that their policies on “conflict of interest” pertaining to other employment can be tricky depending where I apply. I figure it’s all pharmacies and places with pharmacies that fall under that policy. I was just wondering if anyone has some better knowledge or experience in this.