Did the people heed the priest’s warning?

No they did not heed the priest's warnings.

His prudence fell on sterile hearts. The news of the captive angel spread with such rapidity that after a few hours the courtyard had the bustle of a marketplace and they had to call in troops with fixed bayonets to disperse the mob that was about to knock the house down. Elisenda, her spine all twisted from sweeping up so much marketplace trash, then got the idea of fencing in the yard and charging five cents admission to see the angel.