Ok...OP went into a store.
Fact....he/she did cut off a security tag, and got caught.
As he/she had scissors in his/her possession, and used them in the commission of a crime - it is viewed as a Pre-meditated crime. Meaning OP entered the store with a Tool with the intent to commit the crime.
OP should be very grateful the charge is Vandalism, and not Felony Burglary, which yes, he/she could have been charged with.

