I don’t want to be mean, but I honestly don’t know what else you wanted the RA or maintenance to do. All the RA can do is direct you to maintenance. It’s not their job to go mice-hunting in your dorm. All maintenance would do (most likely) is set traps, which you already did. If you hadn’t gotten traps, they likely would have provided you with something (I would hope!). If the problem persists, then contact them again. If it seems like more extreme action needs to be taken, then they may move you to another room if one is available, while they handle the problem. That’s what happened when a dorm I lived in had a flea problem.