I hid weed in my suitcase

Basically to stop my parents from finding weed I stupidly stored it in a few toiletry bags in my suitcase which made it less potent, I've taken the weed out of it now however I'm going to america in a couple months and I'm worried that a dog will pick up on the scent even though no weed will be in it, I know how strict america are and i'll be uttered screwed. Will the smell fade over the upcoming months so to the point where a dog won't be able to smell it or am i going to have to get my suitcase cleaned? I can't go and buy a new suitcase bc thats just a waste, someone help please.