I don't know if it carries the weight os a state statute, but one way or another, it will get you in trouble.
Weight effects handling.
Power and torque effect handling.
Speed effects handling.
Weight may cause a low transom, so waves could breach and sink the boat.
And that would be 85 extra pounds on there.
Maryland boating regs state:
Capacity Plate
The U.S. Coast Guard requires boat manufacturers to install a Capacity Plate
in plain sight of the helm on most vessels less than 20 feet in length. The capacity plate provides the operator with information concerning the maximum horsepower of the engine, maximum number of persons on board and total weight the boat can carry which includes persons, equipment, fuel, engine, etc. Always adhere to the information provided on the capacity plate.
