The SOPs of the airline I fly for is to select HDG HOLD once in the cruise and use rudder trim to trim the control wheel to neutral or near to, and therefore have the ailerons virtually neutral.
If it takes a significant amount of rudder to do so we would raise a tech log entry, which would probably result in a rigging check.
The crew of your flight may have mentioned it to the engineers or made a tech log entry which may or may not have resulted in a rigging check.