The demonstration follows emergency spending controls at Northamptonshire County Council.
Murder-accused James Dodd messaged friends to say "my boys will stab them" after a fight.
The unused cone is expected to sell for thousands of pounds.
County Council rubber-stamps plan to sell new headquarters
A volunteer group claims she could have frozen to death after the incident in Northampton.
League One play-off chasers Scunthorpe United twice come from behind to draw against Northampton Town.
Northampton score three quick tries to turn around a half-time deficit to win 25-17 against London Irish, who look destined to be relegated.
Northampton Chronicle and Echo
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