Evaluate the following statements to identify the legally accurate constitutional mechanics surrounding the imposition of President's Rule:
1. During an active state emergency, the regional Governor is granted sovereign authority to independently authorize expenditure from the state consolidated fund.
2. Upon the proclamation of state-level emergency, the President can formally declare that the legislative powers of the state shall be exercised by Parliament.
3. The suspension of the constitutional machinery in the National Capital Territory of Delhi is legally executed via the invocation of Article 356.