Erica is found talking with Bessie and Rosa, in Kathy's Space in Royal Flush Plaza after 8 AM on day 2. She and her friends take advantage of the outbreak and are shopping in the line-less stores when they are found by Chuck. They claim that there is a sale and they are not leaving without their box of shoes, which Chuck must carry.
Rosa, Bessie and Erica are some of the survivors that are easily missed due to the 8 survivor limit. This means that if there are more survivors elsewhere, more than 5, they will not show up because Chuck could have more than 8 survivors join him. He must deal with the other survivors so that there is "room" for these 3 by either taking them to the Safe House or killing them.
There are two women, seen fleeing in the Fortune City Arena during the cutscene between Chuck and the infected spectator, who share the same character model as Erica.
Erica, along with Bessie and Rosa, does not appear in Off the Record.