Two can play this game!
Colossians 3:17 — And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father through him.
Colossians 3:23 — Whatever you do, work at it with all your heart, as working for the Lord, not for human masters,
I think that a poor idea, WRT any sort of witness.
Sue them if they don't pay.
Certainly an option.
Put two extra zeroes on the dollar amount charged. "Sure I'll photograph you homos for $100,000 PER HOUR.