That's really irritating.

May I suggest a carcam that records for a bit after you've stopped?

Whilst the police probably won't accept your footage as evidence at least you'll know what the bugger looks like if you happen come across him or her when you just happen to have a sledge hammer with you...

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1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!