Same with a lot of vans.
On site similar note a colleague had his patio doors snapped on Sunday @ 11pm, by the time he was downstairs (entry zone) they had left with his Mercedes.
Can you afford not to? once you weigh up your time and the hassle it's often better to have it done quickly by a professional with a full warranty etc. imo
With all due respect if you ask 10 different police officers you will get multiple answers to the same question, I installed (with audio) CCTV at my mothers house for issues with a neighbour, the police that visited her over the course of a year or so did not have a scooby about the law and CCTV.