I'm surprised they didn't seize the van, it's not worth much and it'd prevent him re-offending so easily. I thought they came down fairly hard on people impersonating emergency services, perhaps he was actually a bit of a nutter.
I'm not aware of a specific offence of imitating an ambulance or its driver, unlike the offence of impersonating a police officer. Hence why the vehicle wasn't seized. But if you impersonate a police officer it's pretty serious.
M


