Nope, just stop at the guards station and tell him you are checking in that day. He will look for your name on the arrival sheet. If it were I however, I would go ahead and step inside and check in. Room probably won't be ready but they will text you later when the room is ready. Also, they will give you a parking slip. I am an early riser (before 5) and I always get to our hotels before 7:30 ish and check in. The CM's are real friendly then because any person they check in during a slow time is one that won't be in line during a busy time.