No. It is strictly forbidden, without exception, to park or stop in a cash transport zone. Failure to comply with this parking rule exposes the driver, in case of control, to a fourth-class fine for very obstructive parking, with a penalty of 135 euros without possible reduction.

Spaces reserved for cash-in-transit vehicles are indicated by a yellow cross marking, accompanied by the words "Transporteurs de fonds" or "Convoyeur de fonds" painted in yellow on the asphalt.

You can find here details concerning consequences of unauthorized parking.