spring is here and summer is coming, and that's driving gets a lot more fun... especially when you can roll down the windows etc. Anyways, with some of the recent incodents with my detector turning off randomly etc., I was thinking of sending it in for warranty service just to make sure everything is working well. I went to www.whistlergroup.com and checked out the part of their site that talks about the warranty service. It said I needed a copy of the in store receit, and... I bought it online. What do I do? I don't have an in store receit, so is there some warranty card I need to send with it?