From a guys standpoint, yes, we do encounter that too. Mind you, I don't wax that area. Shave with a Venus. But if I ride the day I shave or the day after, I can expect several ingrown hairs. My only suggestion would be to plan to shave on your off-days. Give the hair that extra time to come back through the skin before sitting for so long.
Do you have any suggestions for us guys?