Inspired by this answer to the question entitled "Possible isometry groups of open manifolds" we ask the following question:
Is there a complete vector field $X$ on $\mathbb{R}^2\setminus\{p,q\}$ whose foliation is a geodesible foliation but there is no a Riemannian metric $g$ on $\mathbb{R}^2\setminus\{p,q\}$ such that all trajectories of $X$ are length parametrized geodesics? ($|X|_g=1$)