Fight wtih chick @ wal mart - whose fault?

i was at wal mart today. it was the kind with the double lanes. there was like 9 customers behind me ( busy christmas season) . the woman checking was an older lady and brand new, very nervous. she had trouble checking me otu so everyone was really antsy behind me. after she was done we said our merry christmas's and i tried to get out of there so she could serve the next customer. a blonde 19 year old britney spears wanna be had her cart parked right in the only exit (the other way had a line of customers) she wasnt in line she was just sitting there reading a TABLOID. i said " excuse me mam can you let me through" real sweet, no response. everyone behind me pissed. i said a little louder. "Excuse me mam your blocking the only exit' then she blew up in front of liek 30 ppl and started yelling at me " therse a million ways you can go !!!" I said " you show me another way and ill go that way theres carts over there and customers here " she starts screaming " JUST GO! JUST GO ! JSUT