I've heard exactly that from others. I tried rolling a joint when we had crossed the border and I was without a vape. Didn't work out well. Seems that I have forgotten how to do it, if I ever knew. Maybe someone else did the deed way back when. I didn't partake long, and never bought it myself, so maybe I never rolled one. Been too long for this old bugger to remember.
I never did get things sorted until we got back across the border. Then I just bought another vaporizer, and it turned out fine. As, surprisingly enough, was the dispensary weed I bought to get me home to my home grown.
Next trip, the vaporizer is coming with me, border or no.