Why the heck not? Seems like a perfectly logical way to store a rifle in a garage to me.
Really?
Let's see just how logical it actually is. Oswald is supposed to have transported his rifle to New Orleans on public transport, right? I don't think it is very plausible that he did so by wrapping it in a blanket. What do you think? A duffel bag or something similar would seem a far more logical choice, right? You know, the kind of bag that was actually found in Ruth Paine's garage.
So, if we assume that Oswald did in fact not use a blanket but used some kind of bag to transport the rifle to New Orleans, why would it even be remotely logical for him to use a blanket to wrap the rifle in instead of using the duffel bag that was actually amongst the possessions that were stored in Ruth Paine's garage after she collected Marina in New Orleans?
You may feel differently, but the entire blanket thing simply doesn't make much sense to me. Even less so, as a blanket does not offer much guarantee that the rifle won't fall out during the unloading of the car.