If you get stopped you will DEFINITELY get nicked for possession of an offensive weapon. A very easy arrest for any copper- particularly as you've told every Southampton PC who you are in the ad for the car.
Ah, but if you had a bag in the boot with a baseball outfit, catchers mitt and a batters helmet, you could always claim that you're an aspiring baseball player. Would be he same as carying a cricket bat and cricket attire.
If you get stopped you will DEFINITELY get nicked for possession of an offensive weapon. A very easy arrest for any copper- particularly as you've told every Southampton PC who you are in the ad for the car.