"I suppose we will," Severus agreed with a nod. "So, I think we're about ready for the Mandrakes, now," he added after a moment. "Were you bringing the earplugs, or was I supposed to?" He looked up a second later with a smirk. He'd actually found some of his own in the same shop with the trowel and pots. Though he had no doubt they would all disappear from the shop if their captors decided to start blasting music again.
The earplugs would protect them, of course, but it would do nothing for anyone within earshot. So after dusting his hands a bit, Severus also drew his wand to cast a Silencing Charm, bathing the immediate area in a cone of silence. After that, he added a Muggle Repelling Charm, because they couldn't guarantee that someone wouldn't still wander by at an inopportune moment. Of course, knowing their captors, they couldn't guarantee that either charm had worked, either. Only time would tell.