might be harsh but i wouldnt hold your breath, they are very hard to come by
alot of the time bands just dont want to be photographed so will refuse offers plus when they do accept them its usually with people they work with before or who have a good rec
my advice would be to just ask away, no harm in it, justplug away - eventually a break will come, just get as many contacts as you can, befriend existing ones and make new ones, ive got a few friends who do this shit and thats how they got their break
good luck with the maine btw