It happened to me and to another person in the same road who did the same, parked wiht one of these firms at the airports.
We did mention it to police but they disregarded the hint. However, before staying at the hotel at the airport and use their parking space, we were never burglared. It could have been a coincidence, who knows, but certainly these companies have a high turnover of staff, coming from all over the world and they can have access to clients records.