Please check your charges for incidentals. I just had an issue on my credit card where it was charged twice, once upon check in with the room and then again separately the next day. But whomever charged it typed in my CC# the second time. I spoke with the hotel and they had no idea of the charge and since they didnt and i had no idea, my bank removed it and categorized it as fraud. I had to get a new business card, in the middle of the con. Luckily my accounts are my own and linked.
Im not accusing the hotel but someone on their staff is sneaky and figured i wouldn't notice it because you know, Comic Con, we spend big money...i guess they figured I'd see it as hotel charges... but a $90 hotel charge does not go unnoticed!