Just had these guys in the Athlone Roscommon area.
Their flyer still has the same phone numbers on it.
We notified the Gardai who called back within 30 mins to say they had stopped and searched the van and questioned the driver and helper. It seems that they were already known to the Gardai. Not much that the Gardai can do when they are delivering stickers but all reports do help the Gardai to collate information on them, especially in rural areas. So, do what we did and notify all visits by these people to your local Gardai.