Me personally? I’ve become much less tolerant of sexist humor. Back in the day, cracking a joke at women’s expense was pretty common when I was a teen. As I’ve matured and become aware to the horrific extent of toxicity and bigotry pervading all tiers of our individualistic society, I’ve come to see how exclusionarly and objectifying that sort of ‘humor’ really is, and I regret it deeply.
Go with “Thank you, customer”
Really push the dystopia with dead eyes and big smile as you do it.
Very fortunately, I now work from home in a job with basically zero interaction with anyone at all (it’s great) so this mostly applies to casual social interactions at say, a grocery store. I have to say though, using your suggestion in this context is actually hilarious and would be super gratifying.