A frozen or seized belt can definitely cause those symptoms. If any of the pulleys or bearings have locked up, this can lock the engine, which would keep the battery from turning the engine, and also lock the wheels when the car is pushed or pulled. I saw an identical thing happen to a Chevy Pickup a couple of years ago. The wheels were locked and the motor would not budge. The problem was a frozen bearing that locked the serpentine belt.
95 Contour Zetec, ATX (wrecked, sitting in the barn)
95 Mystique Zetec, MTX
2000 Taurus SEL 3.0L Duratec
1994 Crown Victoria LX 4.6 V8
1993 Chevy Silverado 4.3 V6
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