Hi,
Lord knows i have been late a time or two myself and I realize things happen.

I have never billed anyone for this but there was a time or two I wish I could have!

I never wait 30 minutes I amy wait 15 but after that I am gone!

I have left after waiting 15 then get a call...hey i am sorry I was late can you come back?

yeah I always do!

regards

Greg