Busted on my first day!

The first day of my stay here at St. V's...I haven't had a chemo treatment yet...they've hooked tubes up to me but the nurse says I can go wherever I want - my pumps are on a pole and they run off batteries when I unplug the pole from the wall, so I just have to take my pal the pole with my everywhere.  My nurse gives me my pre-chemo drugs (anti-nausea, etc.) at 11:40 and says in an hour she will start the chemo drugs.  So Mom, Kris, and I go down to the cafeteria to eat lunch.  We probably didn't head down there until about 12 and it was pretty crowded so at 12:45 I look at my watch and say that we should probably head back up.  Kris says not be worry about it because the nurse got started late and she didn't think it had been an hour...so we finish eating and casually head back up (yes, I'm blaming this on Kris).  As I'm coming down the hall I find out that they've been looking all over for me and that my nurse is on the phone with security as I'm walking back to my room.  I pass another nurse in the hall and she says "Somebody's in trouble".  Yikes.  I'm now grounded to the 6th floor.  My nurse said she found out from the Charge nurse that since I'm receiving chemo drugs I'm really not supposed to leave this floor, but I wonder if it's because she's mad at me.