MIT neuroscientists find the brain can identify images seen for as little as 13 milliseconds.
Even apart from this, please excuse the poor English, but once you've seen something you can't "Un-see" it. You've heard of "Don't think of Pink Elephants" haven't you? Oh, and BTW: what colour elephant is in your mind right at the moment as you read this? The same goes with seeing something, once you've actually seen it (the nice moist chocolate cake) then that image is burnt in and that's all there is to it, you've been HIT!
As far as digital marketing goes "Pop-up Ad Blockers" can stop your online advertisement from even showing to your prospective customers. Ever seen an Ad Blocker on a billboard? The simple fact is people cannot un-see what they see, and they can't forget it either, it can't be 'blocked' as they walk or drive around, so really they are an open and captive market ripe for you to send your message right on through, as to why they should do business with you.
We've done our job and provided you a highly visible platform everywhere people work and play, it's now your turn to start to list all of the reasons why people should do business with you. If you can't think of any, then you've got a serious problem. It is much more likely that it you have a business that you're passionate about, and that has something useful to sell or do, then there will be PLENTY you could put up on one of our digital billboards to drive more trade your way. It does not have to be as obvious (first level) as price, product or service, people are also very interested in what type of people they are dealing with, and the ethics or what interests you as a business. Put up staff profiles, give your opinion on things, and use this fantastic Out of Home digital medium to connect in much the same way you currently are on your Social Media and website.