The way the struts are now it would have been obvious. they also claim in the receipt a "PM and Safety Visual inspection" was performed. Given that they are always looking for an upsell I find it hard to believe that they wouldnt have noticed the need for 1500 more workWhy would you think that a tire tech who is busting beads and changing tires all day would take even half a second to notice anything about your suspension or shocks, and especially if you weren't paying for suspension service?