No. It is unlawful for any owner or custodian of a animal to allow such animal to ride in any motor vehicle or in any portion thereof that is open in such a manner to permit such animal to jump out of the vehicle or to be thrown there from by acceleration of, stopping of, or accident involving, such vehicle. This includes, but is not limited to, the open bed of a truck, the interior of a convertible vehicle with the top down or removed, the rear storage portion of a station wagon with the tailgate open, and the trunk or hatchback portion of any vehicle with the trunk or hatchback open.
An animal is allowed in these prohibited portions only if it is tethered or confined to a cage of adequate construction and design to prevent its escape. (County Law Reference Section 3-17)