At least once IIRC, although in a place where no one could have objected to it. Early in the 1980 campaign he and John Connally were the only Republicans interested in getting the endorsement of an evangelical group whose name unfortunately escapes me.
Connally spoke first, and made some weak joke about being a Methodist in a room full of Baptists, or some such. Reagan gave a speech describing how incomprehensibly moving it was that Jesus had died for him as an individual. Apparently the delegates were profoundly moved, and the rest is history.
A week later the same little boy was selling puppies at the same spot but this time Republicans were coming out of a meeting. One couple asked the little boy "are those Republican puppies?". The little boy replied "yes, they are". And the couple buys one.
A reporter nearby had seen the boy sell puppies the week before and he says to the boy "last week you said they were Democratic puppies, now this week they are Republican puppies. Which are they?"
The boy replied "last week they were Democratic puppies. This week they are Republican puppies because now their eyes are open".