I had encountered something similar when I used to attend a church that absolutely demanded that we be present for Sunday morning, Sunday night, and Wednesday night services. I recall trying to state on my application that I needed Sundays off and Wednesday nights off. Many restaurant and retail jobs expected people to work on Sundays so that did not always go well.
The church would say that if we were really following God that He would provide the necessary job but I always found it hypocritical of them to go shop for groceries or eat out at restaurants on Sundays after church. I mean, someone had to work to provide those services to them (and don't give me that worldly people doing it crap, what if all people went to churches like ours? Where would they go then?)
The last straw was when I recall going with my uncle, after attending his IFB church, to do a delivery job at a bottling plant. I asked him, "I thought Christians aren't suppose to work on Sunday?" He basically weaseled his way out by saying sometimes you had to do what you had to do. Right, I thought and it was not long after that I decided to make a way for myself and stop limiting myself by their assinine rules.