I used a friends on a test 18 years ago. He urinated into a condom for me and I went straight to the doctor keeping it on the heated defrost vent on the dash and crotched it. Can't remember how long I waited in the Dr.'s office but it worked. I like the idea earlier of having a thermometer. I didn't do that. I might have just gotten lucky. My buddy just told me that the defrost will heat it up and crotching it would bring it back down to the right temp being up against your body. Don't take my word though. This could be myth and I am by far not an expert and am looking for some advice for myself. Just sharing a little story what I did one time. Oh yeah, I have noticed that some places are making you empty your pockets before you go in so if you are going to need to cut open the transporting device, hide it in your shoe or somewhere. Good luck brother and and share the method you used so I can be more informed if it works. Thanx.