Day 12 of not getting a courtesy wave from motorcyclists after moving over

I fear this may be becoming a forgotten custom. I have always watched for it with great anticipation, yet of late, it seems to have fallen into neglect. I shall make another attempt upon the morrow, though should this regrettable state of affairs persist, I fear I may be compelled to reconsider my generosity and cease granting you that additional three feet of space.