Can't even get Hood open? Try going underneath with jumper cables. Put positive, or Hot, on big stud on solenoid on the starter with the big wire that leads Away from it to the battery. Ground lead to frame (I am Assuming it is a negative ground, Non-Ford?) This might provide enough juice to open doors, hood, and start it.
Once U get it started, go to the 'Zone and see if charging problem or loose belt or load test New battery ( new things Do fail) and /or some drain.