thats pretty low - i would have gotten off the roof and took them aside and told them how unprofessional it is - They could at least wait until you are done. Not that i would be happy about it but it is your time not theirs.
I'll put it to you like this. I worked for one of them companies,past tense. should I decide to sell during storm restoration I'll do it for A local roofer. not A hoarder.