I'm not familiar with Raising Cane's, but the same thing happens at any Chick-fil-A near Seattle (we don't have any in Seattle proper). It doesn't even have to be a new opening. Meal time on a weekday? Chick-fil-A has a line around the block.
That one in Bellevue that they'll wrap around the block and onto 405? And no one cares that they're just stopped on the freeway blocking lanes for fucking chicken?
This should be illegal. Drive thrus need capacity like a dining room. How is it fair for public infrastructure to be blocked so a private company can sell chicken? It is also a massive safety hazard.
I have heard of some problematic locations but for the most part Chik-fil-a is a well oiled machine, sounds like that store needs more training and/or staff.
There are times when joining a 12 car line at CFA is still faster than waiting for the 1 car in front of you at burger king, and there have been times my car hasn't even been stationary until I'm at the window collecting my order!