Went there approx a year ago to see Princess Jayna who was touring. Had not been near there before, but as my appt was in the evening, I was able to take advantage of the free parking on thew main road outside the railway station, approx 5 mins walk away. As I made my way to the Hotel, found more free street parking closer to the Hotel, near the Capital One building.
As for the hotel itself, it was fairly busy, but walked straight to the lift and went to her room without any problems, or being asked by any Hotel staff.
Make sure that you already know the room number and location of the lifts, so that when you walk into the building, you simply walk on as normal, towards the lift and then select the floor button. i. e. don't look clueless or try to ring her from the reception.
If questioned (I very much doubt it), simply say that you are meeting a friend in room xxx.