Bet theirs a couple of dolls in the van, that would explain the two air compressors.
Finished jobs early, wife's at work, plenty of room in the van.... Im sure you get the idea.
Old Lady..... "Well officer the carpets are completely ruined and the vans now parked down our street rocking like status quo".
Officer.... "Come on sir open up, what's with all this rocking"
Cleaner.... "I cant me karchers leaking"
Officer.... " What's all that squeaking noise sir"
Cleaner.... "Airlock in me wand officer"
Could go on.