The first thing to do is get your 'holding agreement' sorted for the impounded vehicle... To keep said vehicle secure, on your premises, is a chargeable asset, and as such, you have every right to re-coup this from the parties involved... On the railways, they'd be looking at well over £100 a day to hold a vehicle on private infrastructure... Some places would be 10x that.
Next, identify any damage/loss of production/production impact (delay/hygiene infringement) and identify a fiscal value to your business...
Next, identify man hours diverted to this 'event', and again identify a fiscal value to your business...
Find out who's picking up the Fookin great invoice you're about to post them...
Tell your company legal department... (who'll crap half a detached bungalow when they see what's going on)...
Then...
Quietly look at how the fookers got out... Because that's how the hoodlums can get in...
Finally...
cc and bcc everything into everyone...
And await the excitement...
