Looks like she's trying to get to the coast, to escape off of continental Equestria. They built train tracks across the ocean, somehow, so a boxcar would be ideal, but would raise instant suspicion should she get caught. More room to escape than stowing away on a ship though.
If crossing the ocean is a no go, then waiting on a road out of the city for a gullible pony pulling a cart… that'd probably be her best bet.
If crossing the ocean is a no go, then waiting on a road out of the city for a gullible pony pulling a cart… that'd probably be her best bet.