Just to add to the confusion regarding room numbers, the website says that there are only 124 rooms on two levels. The hotel also appears to be two buildings. If it's an even split, that would be 62 rooms per level. So they might start numbering the rooms on the ground floor at 100 and the rooms on the second level at 200? That is the only way I could see them even having a room #150 and a room #262.
Just thought I'd put a picture of the exterior of the hotel in here to for a reference as to what type of hotel this is. It's really just a two story motel with individual outside entrances. After check-in, EJ would have had no reason to go to the lobby area/front desk unless she was using the computer or requesting something. I believe it was stated that she was seen using the lobby computer although it wasn't mentioned how many times or when and I also believe she went to the front desk to ask for milk late one evening. There is free wifi so if she only used the lobby computer once, she was using something to update her myspace on several occasions during the week. I'm still not convinced that she didn't have her laptop with her and ditched it somewhere in SA.