Tell the police immediately then tell your insurer and ask
for a claim form.
Be prepared to wait a while in case your car is recovered.
A great many cars taken without the owner's consent are soon
found abandoned.
If property is stolen from your car tell the police immediately
and then tell your insurer.
Most comprehensive policies protect you against loss of or
damage to rugs, clothing and personal belongings which are
in your car. Policies set a limit on the value of such property.
Check your own policy for details.